https://bugs.kde.org/show_bug.cgi?id=439192
--- Comment #10 from Jonathan Wakely <zi...@kayari.org> ---
The crash is an abort in glibc caused by double free on line 2104 of
qt5-qtbase-5.15.3-3.fc36.x86_64/src/corelib/kernel/qobject.cpp
2099 // don't use qDeleteAll as the destructor of the child might
2100 // delete siblings
2101 for (int i = 0; i < children.count(); ++i) {
2102 currentChildBeingDeleted = children.at(i);
2103 children[i] = 0;
2104 delete currentChildBeingDeleted;
2105 }
2106 children.clear();
The comment suggests that when a child deletes a sibling it fails to set that
entry in the vector to a null pointer, so that the parent subsequently tries to
delete that pointer again.
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