Avoid dock manager double delete (crashes) #587
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If a dockwidget has been manually deleted, the dockmanager would delete it again when deleting the area in its dtor. The 'optimal' solution would likely have been changing CDockWidget::~CDockWidget to add if (d->DockArea) d->DockArea->removeDockWidget(this); (before delete d). However, it is not trivial (for me) to conclude that such a change would be safe on program shutdown.
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If a dockwidget has been manually deleted, the dockmanager would delete it again when deleting the area in its dtor.
The 'optimal' solution would likely have been changing CDockWidget::~CDockWidget to add
if (d->DockArea) d->DockArea->removeDockWidget(this); (before delete d).
However, it is not trivial (for me) to conclude that such a change would be safe on program shutdown.