gtk-builder-tool does not recognize parent properties
When trying to simplify a GtkBuilder file containing a template element (example), the templated class will not be handled as a subtype of the declared parent class, preventing the simplification of its properties:
$ gtk-builder-tool simplify data/ui/add-comic-dialog.ui --replace
Property BuohAddComicDialog::border-width not found
Property BuohAddComicDialog::default-width not found
Property BuohAddComicDialog::default-height not found
Property BuohAddComicDialog::destroy-with-parent not found
Property BuohAddComicDialog::type-hint not found
I am using GTK 3.22.30.
Edited by Jan Tojnar