Comment 18 for bug 1943481

As discussed I've thrown this into some general regression testing.
While it didn't catch the former issue it provides some general coverage and confidence avoiding that something totally unexpected slipped in.

I tested only x86 as that was the system I had ready, but nothing should be arch-specific
prep (x86_64) : Pass 20 F/S/N 0/0/0 - RC 0 (16 min 41390 lin)
migrate (x86_64) : Pass 280 F/S/N 0/0/0 - RC 0 (67 min 212868 lin)
cross (x86_64) : Pass 46 F/S/N 0/0/1 - RC 0 (52 min 72643 lin)
misc (x86_64) : Pass 73 F/S/N 0/0/0 - RC 0 (31 min 41778 lin)

Thereby I think this should now be ready to fix up the regression-update case.