[otrs] Unlock Question

Hello, I have a queue where unlock time is set 1, I understand this means that holding time is one minute, and thne that message is unlocked. But this works only with the cronjob changed from 35 * * * * $HOME/bin/UnlockTickets.pl --timeout >> /dev/null to 35 * * * * $HOME/bin/UnlockTickets.pl --all >> /dev/null Queues with unlock time set to 0, are not affected and the tickets are not unlocked, even with the all option. Is that the planned behaviour? Thanks Christoph