Build trigger ignoring rule

Our teamcity deployment runs as machine\teamcity. It also uses the same user for VCS.

I have added build steps to check out files, update them and check in. This causes the build trigger to be triggered by teamcity itself!

So I tried to add a rule to build trigger:

-:user=%dep.bt4.vcsroot.tfs-username%:**

This becomes -:user=machine\teamcity:**

Still the build is triggered by changes.

Any clue on how to fix this? This is a very common scenario when updating build numbers etc, so it should be fixable!


Thanks!