How to use GtkStack
How can I use GtkStack and add GtkStackPages and further children to it? This might turn out to be a bug or feature request, or a problem on my side trying to use cambalache.
Using Cambalache 0.8.1, my experience is as follows: I start a new Gtk4 project in cambalache. I add a GtkApplicationWindow. I add a GtkStack as child of the window, so far so good. When I try adding other child widgets to the GtkStack, such as GtkLabel or GtkStackPage, it does not work. More precisely: After selecting the child wiget to be added, I would expect the widget to appear in the GUI and in the tree view on the left side. Instead, cambalache seems to do nothing at all, the ui definition is unchanged, no success or error message is shown.