$ git clone -n https://src.fedoraproject.org/rpms/golang-x-mod.git /var/lib/mock/f43-build-61009611-6587628/root/chroot_tmpdir/scmroot/golang-x-mod
Cloning into '/var/lib/mock/f43-build-61009611-6587628/root/chroot_tmpdir/scmroot/golang-x-mod'...
$ git fetch origin 8b18dc2c3d6c8fbda31672fbb2f0f3bef28f64f1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-x-mod
 * [new ref]         8b18dc2c3d6c8fbda31672fbb2f0f3bef28f64f1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b18dc2 Update to 0.26.0 upstream release