doveadm backup: Try to avoid crashing on unexpected destination changes. It's a bit difficult to reproduce this bug.. But at least this change should change the assert, if nothing else.
doveadm backup: Try to avoid crashing on unexpected destination changes.
It's a bit difficult to reproduce this bug.. But at least this change should
change the assert, if nothing else.

dscho/dovecot,dscho/dovecot,dscho/dovecot,dscho/dovecot,dscho/dovecot