https://foss.heptapod.net/xemacs/slider/-/issues/6199
https://foss.heptapod.net/xemacs/slider/-/issues/6196
https://foss.heptapod.net/xemacs/slider/-/issues/6191
https://foss.heptapod.net/xemacs/slider/-/issues/6184
https://foss.heptapod.net/xemacs/slider/-/issues/6180
https://foss.heptapod.net/xemacs/slider/-/issues/6172