Checkout bamboo on detached HEAD

[Donatella Costa]

Hi, I have a bamboo build plan triggered on TAG push. The version of bamboo is 7.2 and the repository linked to the plan is the master branch of a bitbucket repository.

When the build plan starts, in log i see the following warning:

"You are in detached HEAD state" so the build starts every five minutes on the same older tag. 

I've configured other plans that correctly starts on the newest TAG and only when a new tag is pushed.

In the overview i've try to delete repository cache and the flags "unable repository caching on remote agent" and "Use shallow clone" are unchecked.

Is there a way to correct the "detached HEAD state"?

Thanks