Teamcity trigger build on new branch without a new commit

I'm using TeamCity 2017.1.4 along with GitVersion.

The teamcity project itself consists of many build configurations the first of which is to run GitVersion and then all subsequent steps take a snapshot dependency on this step and pull the version from its parameters.

In most scenarios this works great, however if we create a new branch eg. /release-foo and push this, teamcity will not trigger a build because its already previously built the commit sha, unfortunately we need it to trigger again as even though the commit hasn't changed being in a new branch means it will get a different GitVersion number.

I've tried forcing the snapshot dependencies on the GitVersion build configuration to always be rebuilt but this seems kind of ugly as kind of breaks all other scenarios where this isn't a problem. I also know I could manually trigger the build telling it to rebuild all dependencies and it would work, however I'm curious if there's a nicer way to get teamcity to automatically trigger a build for a commit on a branch if that branch didn't previously exist, or indeed any other way I could approach this.

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