Bug#951046: ibus: Numpad not working in GDM lockscreen when ibus installed in Stretch

[Julien Negros]

This is not related to an accessibility option since there is the direct 
workaround I described.
However I should have indeed tested on a "stock" Stretch, we have a 
custom one but not that much so I saw no connection... Anyway this bug 
can be closed then, I can't reproduce either on stock Stretch. We found 
no explication but a solid workaround : org.gnome.desktop.input-sources 
xkb-options set as ['numpad:mac'].
Sorry for your time, have a nice day