Destroying a parented ComboBox triggers a Gtk-CRITICAL ** warning
Steps to reproduce
- Create a CombBox
- Add it to a widget hierarchy
- Call show_all() on the toplevel
- Destroy the ComboBox
I have attached a small and self-contained example that exhibits the issue.
Current behavior
Destroying the combobox triggers the warning:
Gtk-CRITICAL **: 15:46:41.789: gtk_widget_is_drawable: assertion 'GTK_IS_WIDGET (widget)' failed
Expected outcome
We should get no error message
Version information
Gtk 3.22.30 on Arch Linux