Robin Gareus 28c8dbf128 Handle special case of using unmanaged widgets to Frame ...

This happens in in Ardour's Preference dialog with
e.g. BufferingOptions:

~OptionEditorContainer deletes the Option, which in turn
deletes the Widget BufferingOptions:_buffering_presets_combo
Since the widget is not managed it is not removed from its
parent.

Later ~OptionEditorContainer disposes the page layout, which
eventually also calls the Frame d'tor, causing a heap-use-after-free.

2025-08-20 16:19:25 +02:00

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