[kwin] [Bug 466279] kwin_wayland crashes in KWin::TabBox::SwitcherItem::visibleChanged() when alt-tabbing with 5 or more items and using Large Icons task switcher

[Nate Graham]

https://bugs.kde.org/show_bug.cgi?id=466279

Nate Graham <n...@kde.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REPORTED                    |CONFIRMED
           Keywords|                            |regression
     Ever confirmed|0                           |1
           Priority|NOR                         |VHI
                 CC|                            |vlad.zahorod...@kde.org

--- Comment #1 from Nate Graham <n...@kde.org> ---
Git bisect says it was 4b1ef33c1e3887b58b5d787d2df71c017c2318a3.

I've noticed that 5 items is exactly the number of items that will require the
Large Icons task switcher to change the size of its background dialog; up to 4
items fit in its default size but 5 makes it need to expand. Something about
the above commit causes kwin_wayland to crash when it tried to expand its
dialog.

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