RFC: silence harmless critical
Submitted by Marc-André Lureau
Assigned to gtk-win32 maintainers
When doing more than one simultaneous clipboard request, you get:
Gdk-CRITICAL **: gdk_property_delete: assertion `window != NULL' failed
In this scenario, an unvisible window is created in make_clipboard_widget() to handle the request. It will be destroyed in selection_received(), before _gtk_selection_notify() returns.
Note: I haven't checked the behaviour on !win32 platforms.