Cloning a rad:// creates a repo with too many branches

[slack-coder]

The expected behavior is to act like git-clone. From its manual page:

"Clones a repository into a newly created directory, creates remote tracking branches for each branch in the cloned repository (visible using git branch --remotes), and creates and checks out an initial branch that is forked from the cloned repository’s currently active branch."

However when cloning using the rad:// scheme, it can result with a repository with more than one local branch.