In this stage, the user is likely to want to run `idevicebackup2` in
interactive mode, so clearly specify the `-i` flag in the right place
(just dropping `-i` at the end of the command does not work as
expected -- i think `idevicebackup2 backup encryption on -i` tries to
set the password to `-i`).
More importantly, note that resetting the password by resetting all
the settings runs a risk of removing some of the forensic information.
Etienne identified a file that he thought was wiped as a result of
this in the call this morning, but I don't remember which file it was.
Maybe `id_status_cache.json` ? If you have more concrete info, please
add it here too!
