$ git clone -n https://src.fedoraproject.org/rpms/golang-github-jackc-pgservicefile.git /var/lib/mock/f39-build-1512935-35580/root/chroot_tmpdir/scmroot/golang-github-jackc-pgservicefile
Cloning into '/var/lib/mock/f39-build-1512935-35580/root/chroot_tmpdir/scmroot/golang-github-jackc-pgservicefile'...
$ git fetch origin d37f57bc8292ddd859024d7a02264a18f247e1bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-jackc-pgservicefile
 * [new ref]         d37f57bc8292ddd859024d7a02264a18f247e1bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d37f57b Bump to commit 091c0ba34f0a65a78ab8d0e313fde0695c0f7186