GtkMenuItem with submenu should honor "submenu-action" sensitivity
Submitted by ria..@..il.com
Link to original bug (#793082)
Description
When menu or popover is bound to a model, item with submenus cannot change its sensitivity, and even when "submenu-action" is disabled (so, action with this name exists and disabled or missing), submenu is always shown, which can be finished as empty submenus (because it does not updated by submenu-action).
Happened with GTK+ 3.22
Version: 3.22.x