Comment 10 for bug 1943481

I also double checked if Hirsute is ok and I agree to comment 5 - Hirsute already uses g_steal_pointer in that place and thereby is fine.

Ok, discussed with Matthew - g_steal_pointer would indeed be ok there as well, but OTOH I've checked the g_steal_pointer in glib2 glib2.0/glib/gmem.h and it does nothing else than what the code does now.
Given that it is a regression-update we do not want to loose any time.

I've done a few more checks and it LGTM also we should not loose any time on it, so I'm sponsoring this into Focal-unapproved.