Public bug reported:

Ubuntu 19.10
gnome-control-center:
  Installed: 1:3.34.1-1ubuntu2


I encounter a force-clock / segfault in gnome-control-center when trying to 
remove nameless Search Locations.  These are found at Settings > Search > 
Search Locations > Other.  (See attached screenshot.)  These nameless search 
locations have existed since conducting a clean install of Ubuntu 19.10 and 
I've been unable to remove them with the GUI.

If it helps, here is the syslog data generated when I attempt to delete a 
nameless search location. 
 All gnome-control-center windows immediately close.


Dec  7 14:30:29 hostname gnome-control-c[6999]: g_settings_get_value: assertion 
'key != NULL' failed
Dec  7 14:30:29 hostname kernel: [30710.826921] gnome-control-c[6999]: segfault 
at 0 ip 00005564e62ccb5b sp 00007fff2765a6b0 error 4 in 
gnome-control-center[5564e621c000+136000]
Dec  7 14:30:29 hostname kernel: [30710.826943] Code: 44 24 08 e8 17 a6 f5 ff 
31 ff 49 89 c7 e8 6d f3 ff ff 4c 89 ff 48 89 c6 e8 02 90 f5 ff 85 c0 0f 85 92 
00 00 00 48 8b 5c 24 08 <48> 8b 3b 48 85 ff 74 49 45 31 ed 66 2e 0f 1f 84 00 00 
00 00 00 4c
Dec  7 14:30:29 hostname gnome-control-c[6999]: g_variant_get_type: assertion 
'value != NULL' failed
Dec  7 14:30:29 hostname gnome-control-c[6999]: g_variant_type_is_subtype_of: 
assertion 'g_variant_type_check (type)' failed
Dec  7 14:30:29 hostname gnome-control-c[6999]: g_variant_dup_strv: assertion 
'g_variant_is_of_type (value, G_VARIANT_TYPE_STRING_ARRAY)' failed
Dec  7 14:30:29 hostname gnome-control-c[6999]: g_variant_unref: assertion 
'value != NULL' failed
Dec  7 14:30:29 hostname gnome-control-c[6999]: g_file_get_path: assertion 
'G_IS_FILE (file)' failed

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: gnome-control-center 1:3.34.1-1ubuntu2
ProcVersionSignature: Ubuntu 5.3.0-24.26-generic 5.3.10
Uname: Linux 5.3.0-24-generic x86_64
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Dec  7 14:38:01 2019
ExecutablePath: /usr/bin/gnome-control-center
InstallationDate: Installed on 2019-10-26 (42 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
SourcePackage: gnome-control-center
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: gnome-control-center (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug eoan gnome-control-center 
gnome-control-center-search-provider tracker wayland-session

** Attachment added: "Screenshot from 2019-12-07 14-43-57.png"
   
https://bugs.launchpad.net/bugs/1855530/+attachment/5310452/+files/Screenshot%20from%202019-12-07%2014-43-57.png

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https://bugs.launchpad.net/bugs/1855530

Title:
  gnome-control-center segfault when deleting nameless Search Locations

Status in gnome-control-center package in Ubuntu:
  New

Bug description:
  Ubuntu 19.10
  gnome-control-center:
    Installed: 1:3.34.1-1ubuntu2

  
  I encounter a force-clock / segfault in gnome-control-center when trying to 
remove nameless Search Locations.  These are found at Settings > Search > 
Search Locations > Other.  (See attached screenshot.)  These nameless search 
locations have existed since conducting a clean install of Ubuntu 19.10 and 
I've been unable to remove them with the GUI.

  If it helps, here is the syslog data generated when I attempt to delete a 
nameless search location. 
   All gnome-control-center windows immediately close.


  Dec  7 14:30:29 hostname gnome-control-c[6999]: g_settings_get_value: 
assertion 'key != NULL' failed
  Dec  7 14:30:29 hostname kernel: [30710.826921] gnome-control-c[6999]: 
segfault at 0 ip 00005564e62ccb5b sp 00007fff2765a6b0 error 4 in 
gnome-control-center[5564e621c000+136000]
  Dec  7 14:30:29 hostname kernel: [30710.826943] Code: 44 24 08 e8 17 a6 f5 ff 
31 ff 49 89 c7 e8 6d f3 ff ff 4c 89 ff 48 89 c6 e8 02 90 f5 ff 85 c0 0f 85 92 
00 00 00 48 8b 5c 24 08 <48> 8b 3b 48 85 ff 74 49 45 31 ed 66 2e 0f 1f 84 00 00 
00 00 00 4c
  Dec  7 14:30:29 hostname gnome-control-c[6999]: g_variant_get_type: assertion 
'value != NULL' failed
  Dec  7 14:30:29 hostname gnome-control-c[6999]: g_variant_type_is_subtype_of: 
assertion 'g_variant_type_check (type)' failed
  Dec  7 14:30:29 hostname gnome-control-c[6999]: g_variant_dup_strv: assertion 
'g_variant_is_of_type (value, G_VARIANT_TYPE_STRING_ARRAY)' failed
  Dec  7 14:30:29 hostname gnome-control-c[6999]: g_variant_unref: assertion 
'value != NULL' failed
  Dec  7 14:30:29 hostname gnome-control-c[6999]: g_file_get_path: assertion 
'G_IS_FILE (file)' failed

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: gnome-control-center 1:3.34.1-1ubuntu2
  ProcVersionSignature: Ubuntu 5.3.0-24.26-generic 5.3.10
  Uname: Linux 5.3.0-24-generic x86_64
  ApportVersion: 2.20.11-0ubuntu8.2
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Dec  7 14:38:01 2019
  ExecutablePath: /usr/bin/gnome-control-center
  InstallationDate: Installed on 2019-10-26 (42 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, user)
   SHELL=/bin/bash
   XDG_RUNTIME_DIR=<set>
  SourcePackage: gnome-control-center
  UpgradeStatus: No upgrade log present (probably fresh install)

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