$ git clone -n https://src.fedoraproject.org/rpms/golang-gopkg-russross-blackfriday-1.git /var/lib/mock/f45-build-12664-443/root/chroot_tmpdir/scmroot/golang-gopkg-russross-blackfriday-1
Cloning into '/var/lib/mock/f45-build-12664-443/root/chroot_tmpdir/scmroot/golang-gopkg-russross-blackfriday-1'...
$ git fetch origin b29013a492a434b318e688616f3444c930463690:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-gopkg-russross-blackfriday-1
 * [new ref]         b29013a492a434b318e688616f3444c930463690 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b29013a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild