https://bugs.kde.org/show_bug.cgi?id=400848

            Bug ID: 400848
           Summary: Discover crashes at startup after update to Qt 5.12
                    beta4
           Product: Discover
           Version: 5.14.2
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: discover
          Assignee: aleix...@kde.org
          Reporter: bugsefor...@gmx.com
  Target Milestone: ---

Today I updated Qt to 5.12 beta4 on Arch Linux, now I can't use Discover,
it crashes at startup.


Operating System: Arch Linux 
KDE Plasma Version: 5.14.3
Qt Version: 5.12.0 beta4
KDE Frameworks Version: 5.51.0

Undefined command: "threah".  Try "help".

Thread 19 (Thread 0x7fff9ffff700 (LWP 10169)):
#0  0x00007ffff5b5ac21 in poll () at /usr/lib/libc.so.6
#1  0x00007fffe43f501c in  () at /usr/lib/libresolv.so.2
#2  0x00007fffe43f2a11 in __res_context_query () at /usr/lib/libresolv.so.2
#3  0x00007fffe43f3059 in  () at /usr/lib/libresolv.so.2
#4  0x00007fffe43f364d in __res_context_search () at /usr/lib/libresolv.so.2
#5  0x00007fffd93d6e6d in _nss_dns_gethostbyname4_r () at
/usr/lib/libnss_dns.so.2
#6  0x00007ffff5b4f012 in gaih_inet.constprop () at /usr/lib/libc.so.6
#7  0x00007ffff5b50038 in getaddrinfo () at /usr/lib/libc.so.6
#8  0x00007fffe482e9b1 in  () at /usr/lib/libgio-2.0.so.0
#9  0x00007fffe482ecd6 in  () at /usr/lib/libgio-2.0.so.0
#10 0x00007ffff4320bd6 in  () at /usr/lib/libglib-2.0.so.0
#11 0x00007ffff43193eb in  () at /usr/lib/libglib-2.0.so.0
#12 0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#13 0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 18 (Thread 0x7fffacf78700 (LWP 10168)):
#0  0x00007ffff5b5ac21 in poll () at /usr/lib/libc.so.6
#1  0x00007fffe43f501c in  () at /usr/lib/libresolv.so.2
#2  0x00007fffe43f2a11 in __res_context_query () at /usr/lib/libresolv.so.2
#3  0x00007fffe43f3059 in  () at /usr/lib/libresolv.so.2
#4  0x00007fffe43f364d in __res_context_search () at /usr/lib/libresolv.so.2
#5  0x00007fffd93d6e6d in _nss_dns_gethostbyname4_r () at
/usr/lib/libnss_dns.so.2
#6  0x00007ffff5b4f012 in gaih_inet.constprop () at /usr/lib/libc.so.6
#7  0x00007ffff5b50038 in getaddrinfo () at /usr/lib/libc.so.6
#8  0x00007fffe482e9b1 in  () at /usr/lib/libgio-2.0.so.0
#9  0x00007fffe482ecd6 in  () at /usr/lib/libgio-2.0.so.0
#10 0x00007ffff4320bd6 in  () at /usr/lib/libglib-2.0.so.0
#11 0x00007ffff43193eb in  () at /usr/lib/libglib-2.0.so.0
#12 0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#13 0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 17 (Thread 0x7fffadffc700 (LWP 10167)):
#0  0x00007ffff5b5ac21 in poll () at /usr/lib/libc.so.6
#1  0x00007ffff434fee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff434ffce in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007fffbf642f9f in  () at /usr/lib/libostree-1.so.1
#4  0x00007ffff43193eb in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 16 (Thread 0x7fffae7fd700 (LWP 10166)):
#0  0x00007ffff5b5ac21 in poll () at /usr/lib/libc.so.6
#1  0x00007ffff434fee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff434ffce in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007fffbf642f9f in  () at /usr/lib/libostree-1.so.1
#4  0x00007ffff43193eb in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 15 (Thread 0x7fffaf7fe700 (LWP 10165)):
#0  0x00007ffff4e19afc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007ffff5e83adc in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at
/usr/lib/libQt5Core.so.5
#2  0x00007ffff5e83bca in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#3  0x00007ffff7a364cd in  () at /usr/lib/libQt5Quick.so.5
#4  0x00007ffff7a3673c in  () at /usr/lib/libQt5Quick.so.5
#5  0x00007ffff5e7d9cc in  () at /usr/lib/libQt5Core.so.5
#6  0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#7  0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 14 (Thread 0x7fffaffff700 (LWP 10164)):
#0  0x00007ffff5b604ed in syscall () at /usr/lib/libc.so.6
#1  0x00007ffff5e7fd75 in QSemaphore::acquire(int) () at
/usr/lib/libQt5Core.so.5
#2  0x00007ffff606450a in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#3  0x00007ffff55e44f3 in  () at /usr/lib/libQt5Network.so.5
#4  0x00007ffff55e533d in  () at /usr/lib/libQt5Network.so.5
#5  0x00007ffff606426c in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#6  0x00007ffff55e34e3 in  () at /usr/lib/libQt5Network.so.5
#7  0x00007ffff552fc38 in  () at /usr/lib/libQt5Network.so.5
#8  0x00007ffff553143c in  () at /usr/lib/libQt5Network.so.5
#9  0x00007ffff606426c in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#10 0x00007ffff55b0f83 in
QSslSocket::preSharedKeyAuthenticationRequired(QSslPreSharedKeyAuthenticator*)
() at /usr/lib/libQt5Network.so.5
#11 0x00007ffff55d03b3 in  () at /usr/lib/libQt5Network.so.5
#12 0x00007ffff3f6591e in  () at /usr/lib/libssl.so.1.1
#13 0x00007ffff3f6383a in  () at /usr/lib/libssl.so.1.1
#14 0x00007ffff3f6dc89 in  () at /usr/lib/libssl.so.1.1
#15 0x00007ffff3f6cb60 in  () at /usr/lib/libssl.so.1.1
#16 0x00007ffff3f58496 in SSL_do_handshake () at /usr/lib/libssl.so.1.1
#17 0x00007ffff55d0ad6 in  () at /usr/lib/libQt5Network.so.5
#18 0x00007ffff55d0eb5 in  () at /usr/lib/libQt5Network.so.5
#19 0x00007ffff55b1dc9 in QSslSocket::startClientEncryption() () at
/usr/lib/libQt5Network.so.5
#20 0x00007ffff55b3001 in  () at /usr/lib/libQt5Network.so.5
#21 0x00007ffff55b93f1 in  () at /usr/lib/libQt5Network.so.5
#22 0x00007ffff606426c in QMetaObject::activate(QObject*, int, int, void**) ()
at /usr/lib/libQt5Core.so.5
#23 0x00007ffff557c80e in  () at /usr/lib/libQt5Network.so.5
#24 0x00007ffff557f7d0 in  () at /usr/lib/libQt5Network.so.5
#25 0x00007ffff558ee3d in  () at /usr/lib/libQt5Network.so.5
#26 0x00007ffff6f3be34 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#27 0x00007ffff6f43671 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#28 0x00007ffff60398f9 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#29 0x00007ffff60901f6 in  () at /usr/lib/libQt5Core.so.5
#30 0x00007ffff434e3cf in g_main_context_dispatch () at
/usr/lib/libglib-2.0.so.0
#31 0x00007ffff434ff89 in  () at /usr/lib/libglib-2.0.so.0
#32 0x00007ffff434ffce in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#33 0x00007ffff608f579 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#34 0x00007ffff603858c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#35 0x00007ffff5e7c5c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#36 0x00007ffff5e7d9cc in  () at /usr/lib/libQt5Core.so.5
#37 0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#38 0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 13 (Thread 0x7fffbca47700 (LWP 10163)):
#0  0x00007ffff4e19ef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007ffff5e83a59 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at
/usr/lib/libQt5Core.so.5
#2  0x00007ffff5e83b97 in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#3  0x00007ffff5e81bb4 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff5e7d9cc in  () at /usr/lib/libQt5Core.so.5
#5  0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 12 (Thread 0x7fffbdafb700 (LWP 10159)):
#0  0x00007ffff5b5ac21 in poll () at /usr/lib/libc.so.6
#1  0x00007ffff434fee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff434ffce in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007fffbf641726 in  () at /usr/lib/libostree-1.so.1
#4  0x00007fffbf60791f in  () at /usr/lib/libostree-1.so.1
#5  0x00007fffbf61153e in ostree_repo_remote_fetch_summary_with_options () at
/usr/lib/libostree-1.so.1
#6  0x00007fffbf5f1bf7 in ostree_repo_remote_fetch_summary () at
/usr/lib/libostree-1.so.1
#7  0x00007fffbfa32a28 in  () at /usr/lib/libflatpak.so.0
#8  0x00007fffbfa32f88 in  () at /usr/lib/libflatpak.so.0
#9  0x00007fffbfa6b57b in flatpak_installation_fetch_remote_size_sync () at
/usr/lib/libflatpak.so.0
#10 0x00007fffd80af9a5 in
FlatpakRunnables::fetchFlatpakSize(_FlatpakInstallation*, FlatpakResource*)
(installation=0x7fffc8013ee0, app=0x55555574a0c0) at
/usr/include/qt/QtCore/qarraydata.h:208
#11 0x00007fffd80aacae in non-virtual thunk to
QtConcurrent::RunFunctionTask<FlatpakRunnables::SizeInformation>::run() () at
/usr/include/c++/8.2.1/new:169
#12 0x00007ffff5e819a1 in  () at /usr/lib/libQt5Core.so.5
#13 0x00007ffff5e7d9cc in  () at /usr/lib/libQt5Core.so.5
#14 0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#15 0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 11 (Thread 0x7fffbe2fc700 (LWP 10158)):
#0  0x00007ffff5b5ac21 in poll () at /usr/lib/libc.so.6
#1  0x00007ffff434fee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff434ffce in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007fffbf641726 in  () at /usr/lib/libostree-1.so.1
#4  0x00007fffbf60791f in  () at /usr/lib/libostree-1.so.1
#5  0x00007fffbf61153e in ostree_repo_remote_fetch_summary_with_options () at
/usr/lib/libostree-1.so.1
#6  0x00007fffbf5f1bf7 in ostree_repo_remote_fetch_summary () at
/usr/lib/libostree-1.so.1
#7  0x00007fffbfa32a28 in  () at /usr/lib/libflatpak.so.0
#8  0x00007fffbfa32f88 in  () at /usr/lib/libflatpak.so.0
#9  0x00007fffbfa6b57b in flatpak_installation_fetch_remote_size_sync () at
/usr/lib/libflatpak.so.0
#10 0x00007fffd80af9a5 in
FlatpakRunnables::fetchFlatpakSize(_FlatpakInstallation*, FlatpakResource*)
(installation=0x7fffc8013ee0, app=0x5555558d6ee0) at
/usr/include/qt/QtCore/qarraydata.h:208
#11 0x00007fffd80aacae in non-virtual thunk to
QtConcurrent::RunFunctionTask<FlatpakRunnables::SizeInformation>::run() () at
/usr/include/c++/8.2.1/new:169
#12 0x00007ffff5e819a1 in  () at /usr/lib/libQt5Core.so.5
#13 0x00007ffff5e7d9cc in  () at /usr/lib/libQt5Core.so.5
#14 0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#15 0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 10 (Thread 0x7fffd88c5700 (LWP 10157)):
#0  0x00007ffff4e19ef6 in pthread_cond_timedwait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007ffff5e83a59 in QWaitCondition::wait(QMutex*, QDeadlineTimer) () at
/usr/lib/libQt5Core.so.5
#2  0x00007ffff5e83b97 in QWaitCondition::wait(QMutex*, unsigned long) () at
/usr/lib/libQt5Core.so.5
#3  0x00007ffff5e81bb4 in  () at /usr/lib/libQt5Core.so.5
#4  0x00007ffff5e7d9cc in  () at /usr/lib/libQt5Core.so.5
#5  0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 9 (Thread 0x7fffd90c6700 (LWP 10156)):
#0  0x00007ffff5b5ac21 in poll () at /usr/lib/libc.so.6
#1  0x00007ffff434fee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff434ffce in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007ffff608f579 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007ffff603858c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007ffff5e7c5c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007ffff5e7d9cc in  () at /usr/lib/libQt5Core.so.5
#7  0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7fffd9ce6700 (LWP 10155)):
#0  0x00007ffff5b5ac21 in poll () at /usr/lib/libc.so.6
#1  0x00007ffff434fee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff434ffce in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007ffff608f579 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007ffff603858c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007ffff5e7c5c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007ffff5e7d9cc in  () at /usr/lib/libQt5Core.so.5
#7  0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7fffda5b2700 (LWP 10154)):
#0  0x00007ffff5b5ac21 in poll () at /usr/lib/libc.so.6
#1  0x00007ffff434fee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff4350f62 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#3  0x00007fffe47c8c28 in  () at /usr/lib/libgio-2.0.so.0
#4  0x00007ffff43193eb in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7fffdadb3700 (LWP 10153)):
#0  0x00007ffff5b5ac21 in poll () at /usr/lib/libc.so.6
#1  0x00007ffff434fee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff434ffce in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007ffff4350022 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007ffff43193eb in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fffe55af700 (LWP 10152)):
#0  0x00007ffff5b5ac21 in poll () at /usr/lib/libc.so.6
#1  0x00007ffff434fee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff434ffce in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007ffff608f579 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007ffff603858c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007ffff5e7c5c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007ffff79aee5b in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007ffff5e7d9cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fffe67f6700 (LWP 10151)):
#0  0x00007ffff4e19afc in pthread_cond_wait@@GLIBC_2.3.2 () at
/usr/lib/libpthread.so.0
#1  0x00007fffe6e131ac in  () at /usr/lib/dri/i965_dri.so
#2  0x00007fffe6e12ee8 in  () at /usr/lib/dri/i965_dri.so
#3  0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#4  0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fffed430700 (LWP 10149)):
#0  0x00007ffff5b5ac21 in poll () at /usr/lib/libc.so.6
#1  0x00007ffff434fee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff434ffce in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007ffff608f579 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007ffff603858c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007ffff5e7c5c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007ffff669b9e9 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007ffff5e7d9cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fffee641700 (LWP 10148)):
#0  0x00007ffff5b5ac21 in poll () at /usr/lib/libc.so.6
#1  0x00007ffff434fee0 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007ffff434ffce in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#3  0x00007ffff608f579 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#4  0x00007ffff603858c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#5  0x00007ffff5e7c5c9 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007ffff7465ba6 in  () at /usr/lib/libQt5DBus.so.5
#7  0x00007ffff5e7d9cc in  () at /usr/lib/libQt5Core.so.5
#8  0x00007ffff4e13a9d in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007ffff5b65b23 in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7ffff0e3ff80 (LWP 10144)):
#0  0x00007ffff6066833 in  () at /usr/lib/libQt5Core.so.5
#1  0x00007ffff6066d38 in QObject::disconnectImpl(QObject const*, void**,
QObject const*, void**, QMetaObject const*) () at /usr/lib/libQt5Core.so.5
#2  0x00007fffefff2cbd in QQuickMenuPrivate::setParentMenu(QQuickMenu*) () at
/usr/lib/libQt5QuickTemplates2.so.5
#3  0x00007fffefff45d2 in QQuickMenuPrivate::removeItem(int, QQuickItem*) () at
/usr/lib/libQt5QuickTemplates2.so.5
#4  0x00007fffefff490d in QQuickMenuPrivate::itemParentChanged(QQuickItem*,
QQuickItem*) () at /usr/lib/libQt5QuickTemplates2.so.5
#5  0x00007ffff7a748d7 in QQuickItemPrivate::itemChange(QQuickItem::ItemChange,
QQuickItem::ItemChangeData const&) () at /usr/lib/libQt5Quick.so.5
#6  0x00007ffff7a7abb6 in QQuickItem::setParentItem(QQuickItem*) () at
/usr/lib/libQt5Quick.so.5
#7  0x00007ffff7a7b1fd in QQuickItem::~QQuickItem() () at
/usr/lib/libQt5Quick.so.5
#8  0x00007ffff7a9d607 in  () at /usr/lib/libQt5Quick.so.5
#9  0x00007ffff60621ab in QObjectPrivate::deleteChildren() () at
/usr/lib/libQt5Core.so.5
#10 0x00007ffff606b165 in QObject::~QObject() () at /usr/lib/libQt5Core.so.5
#11 0x00007fffe7a55f4f in  () at
/usr/lib/qt/qml/QtQuick/Templates.2/libqtquicktemplates2plugin.so
#12 0x00007ffff60621ab in QObjectPrivate::deleteChildren() () at
/usr/lib/libQt5Core.so.5
#13 0x00007ffff606b165 in QObject::~QObject() () at /usr/lib/libQt5Core.so.5
#14 0x00007ffff7a7b2cc in QQuickItem::~QQuickItem() () at
/usr/lib/libQt5Quick.so.5
#15 0x00007fffe7a5415f in  () at
/usr/lib/qt/qml/QtQuick/Templates.2/libqtquicktemplates2plugin.so
#16 0x00007ffff6064b61 in QObject::event(QEvent*) () at
/usr/lib/libQt5Core.so.5
#17 0x00007ffff7a7977c in QQuickItem::event(QEvent*) () at
/usr/lib/libQt5Quick.so.5
#18 0x00007ffff6f3be34 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#19 0x00007ffff6f43671 in QApplication::notify(QObject*, QEvent*) () at
/usr/lib/libQt5Widgets.so.5
#20 0x00007ffff60398f9 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#21 0x00007ffff603c998 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#22 0x00007ffff608ffa4 in  () at /usr/lib/libQt5Core.so.5
#23 0x00007ffff434e3cf in g_main_context_dispatch () at
/usr/lib/libglib-2.0.so.0
#24 0x00007ffff434ff89 in  () at /usr/lib/libglib-2.0.so.0
#25 0x00007ffff434ffce in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#26 0x00007ffff608f579 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#27 0x00007ffff603858c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#28 0x00007ffff6040896 in QCoreApplication::exec() () at
/usr/lib/libQt5Core.so.5
#29 0x0000555555567616 in main(int, char**) (argc=<optimized out>,
argv=<optimized out>) at /usr/src/debug/discover-5.14.3/discover/main.cpp:156

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