
Otherwise it happens that porthole is computed again after that the overlay is hidden (triggered by a layout reallocation) and thus not regenerated again afterwards. https://bugzilla.gnome.org/show_bug.cgi?id=792687
Otherwise it happens that porthole is computed again after that the overlay is hidden (triggered by a layout reallocation) and thus not regenerated again afterwards. https://bugzilla.gnome.org/show_bug.cgi?id=792687