How to suppress version update.

Hi,

I got a project which has two different build.xml, one for normal 
building, another for testing purposes. I created two projects in 
anthill, one for each buildfile. The first one does update the version 
file buildnumber.anthill, the second does also but in this case I don't 
want the version to be updated.

The two projects run on different times and check in the updated version 
file to cvs, so anthill thinks rebuilding is always required. How can I 
just suppress the updating of a version file ?

Thanks,

Frank.