b3358aeed7
To avoid messing up St.Buttons' internal state with a pointer grab, we wait for the pointer to leave the actor before starting the drag operation manually. This works generally fine, but makes starting a drag operation harder than necessary. To fix, enforce a reasonable button state when starting the drag, rather than special-casing buttons before the drag. https://bugzilla.gnome.org/show_bug.cgi?id=637103