$ git clone -n https://src.fedoraproject.org/rpms/kgoldrunner.git /var/lib/mock/f42-build-side-1-3517643-46098/root/chroot_tmpdir/scmroot/kgoldrunner
Cloning into '/var/lib/mock/f42-build-side-1-3517643-46098/root/chroot_tmpdir/scmroot/kgoldrunner'...
$ git fetch origin 65928d95ae3bb97e7c880e861e98b34498f53501:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kgoldrunner
 * [new ref]         65928d95ae3bb97e7c880e861e98b34498f53501 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 65928d9 25.04.0