ods-signer flush moves queue further away

This happens when I try to sign a zone.
The time for the new signature is always 2 hours away.
even if a wail for two hours, it moves again 2 hours forward (without flush)
so the zone never gets signed:

cmd> sign v6.inline-services.com
Zone scheduled for immediate resign

cmd> queue
It is now: 2010-06-29 15:39:11
I have 1 tasks scheduled
At 2010-06-29 17:39:08 I will sign zone v6.inline-services.com

cmd> flush
All tasks scheduled immediately

cmd> queue
It is now: 2010-06-29 15:39:20
I have 1 tasks scheduled
At 2010-06-29 17:39:17 I will sign zone v6.inline-services.com