$ git clone -n https://src.fedoraproject.org/rpms/kgoldrunner.git /var/lib/mock/f39-build-1566901-37592/root/chroot_tmpdir/scmroot/kgoldrunner
Cloning into '/var/lib/mock/f39-build-1566901-37592/root/chroot_tmpdir/scmroot/kgoldrunner'...
$ git fetch origin b08fe098e636e6a93ee481089ce237c027c3faa2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kgoldrunner
 * [new ref]         b08fe098e636e6a93ee481089ce237c027c3faa2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b08fe09 23.08.2