Comment # 12 on bug 1048338 from Olaf Hering

(In reply to Arvin Schnell from comment #11)
> > This is not about multiple systems on a single filesystem.
> Not?

Not in the sense Jiri probably meant it. ext4|xfs:/{42.3,42.2} would be tricky.
But with btrfs this works just fine because each subvol is appears as the root
of the filesystem. I'm using this since more than a year now on two systems.
Just the third one, which was about to be reinstalled, fails now in TW.