Comment # 4 on bug 964553 from Gabriele Tettamanzi

(In reply to Jiri Srain from comment #3)
> So, what happens after you type 'snapper rollback' and reboot? Is there any
> output of the snapper rollblack command? You wrote it loops, which sounds
> like it boots...

There's no error message, because it does nothing. If I edit the entry, this is
what it is displayed:

"If OK, run 'snapper rollback' and reboot." 
true;

It loops showing this message as an entry.

I attach grub.cfg