Fixed|libdeng2|Widget: Crash when notifying a tree
If a widget tree was modified while it was being notified, a crashcould occur because the widget list used for iteration had becomeinvalid.
View differences
Fixed|libdeng2|Widget: Crash when notifying a tree
If a widget tree was modified while it was being notified, a crash
could occur because the widget list used for iteration had become
invalid.