currently hide_bar() bypasses set_visible when visibility was
changed to `never`, this can leave the thumbnail hanging.
instead of scattering disable_thumbnail() calls around, just
call set_visible(false) instead.
Fixes: 9ce79bcaa
currently hide_bar() bypasses set_visible when visibility was
changed to `never`, this can leave the thumbnail hanging.
instead of scattering disable_thumbnail() calls around, just
call set_visible(false) instead.
Fixes: 9ce79bcaa