The mailing list for listmasters using Sympa

[address@concealed]

Hi guys,

I've got a problem with my sympa lists, and unfortunately discovered that all 
the "listes.cru.fr/wws/" list archives are empty, so I can't search them :(

I've setup a CVS server, so that whenever anybody commits, it sends an email 
to my mailing list address, to be distributed to all the developers...

---
Feb 27 12:24:14 rogue sympa[11887]: Message for doc-jajc-commit from 
address@concealed accepted (1 seconds, 1 sessions), size=1233
Feb 27 12:24:20 rogue archived[11893]: Archiving 
---

However, if a second commit happens, I get the following error:

---
Feb 27 12:25:07 rogue sympa[11887]: Processing message for doc-jajc-commit 
with priority 5,
Feb 27 12:25:07 rogue sympa[11887]: Found known Message-ID, ignoring message 
which would cause a loop
---

I've read about loop-detection in the documentation 
(http://www.sympa.org/doc/html/node13.html#loop-detection), but this is a 
seperate email, with a different message ID. 

Is there a time-based loop prevention feature that I'm running into here?

How can I debug / resolve / disable this?

Many thanks :)
David Young