$ git clone -n https://src.fedoraproject.org/rpms/golang-x-vuln.git /var/lib/mock/f40-build-2226923-52983/root/chroot_tmpdir/scmroot/golang-x-vuln
Cloning into '/var/lib/mock/f40-build-2226923-52983/root/chroot_tmpdir/scmroot/golang-x-vuln'...
$ git fetch origin 56192aa71749ccba9bbfd10f3117a432475a8db3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-x-vuln
 * [new ref]         56192aa71749ccba9bbfd10f3117a432475a8db3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 56192aa Revert commit matching unpushed update