f4e6f7074e
Since both the hot corner's ClutterGroup and the hot corner's ClutterRectangle button-release-event is connected to _onCornerClicked() we must handle it there by returning 'true' to Clutter or else _onCornerClicked() is called twice which defeats the HOT_CORNER_ACTIVATION_TIMEOUT logic. https://bugzilla.gnome.org/show_bug.cgi?id=649427