main-branch be part of a repo metadata?

Currently, to have the latest commit in the main branch you have to make 2 requests.

This can be improved for the REST API users if the main-branch would be part of the metadata of a repository.

This would also make the API symmetric with the "PUT repository updates":
{{PUT https://api.bitbucket.org/1.0/repositories/

{accountname}/{repo_slug}}}

The following becomes obsolete:
{{GET https://api.bitbucket.org/1.0/repositories/{accountname}

/

{repo_slug}/main-branch}}

And the following returns also main_branch in the metadata:
{{GET https://api.bitbucket.org/1.0/repositories/{accountname}/{repo_slug}

}}