[dolphin] [Bug 422282] Tree View mode crashes in KFileItemModel::removeItems() and shows duplicate items

[Mathias Panzenböck]

https://bugs.kde.org/show_bug.cgi?id=422282

--- Comment #55 from Mathias Panzenböck <grosser.meister.morti at gmx.net> ---
Created attachment 135497
  --> https://bugs.kde.org/attachment.cgi?id=135497&action=edit
New crash information added by DrKonqi

dolphin (20.12.1) using Qt 5.15.2

- What I was doing when the application crashed:

Deleted a folder on the command line. The folder wasn't big and I'm not 100%
sure what exactly was open in Dolphin, if it was that folder or a super-folder
of that folder. Could not reproduce when I tried, but again, maybe because I
didn't recreate the state in Dolphin exactly.

-- Backtrace (Reduced):
#4  0x00007f6a2ad67020 in KFileItemModel::data(int) const () from
/lib64/libdolphinprivate.so.5
#5  0x00007f6a2ada0dd8 in
KStandardItemListWidgetInformant::preferredRoleColumnWidth(QByteArray const&,
int, KItemListView const*) const () from /lib64/libdolphinprivate.so.5
#6  0x00007f6a2ad92deb in KItemListView::preferredColumnWidths(KItemRangeList
const&) const () from /lib64/libdolphinprivate.so.5
#7  0x00007f6a2ad95a1b in
KItemListView::updatePreferredColumnWidths(KItemRangeList const&) () from
/lib64/libdolphinprivate.so.5
#8  0x00007f6a2ad95bc2 in KItemListView::updatePreferredColumnWidths() () from
/lib64/libdolphinprivate.so.5

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