$ git clone -n https://src.fedoraproject.org/rpms/golang-x-mod.git /var/lib/mock/f41-build-842764-161703/root/chroot_tmpdir/scmroot/golang-x-mod
Cloning into '/var/lib/mock/f41-build-842764-161703/root/chroot_tmpdir/scmroot/golang-x-mod'...
$ git fetch origin f64a13611d083d595681181e7928fcc4f00a9b39:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-x-mod
 * [new ref]         f64a13611d083d595681181e7928fcc4f00a9b39 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f64a136 Update to 0.20.0 upstream release