$ git clone -n https://src.fedoraproject.org/rpms/golang-x-mod.git /var/lib/mock/f38-build-side-42-init-devel-706236-27160/root/chroot_tmpdir/scmroot/golang-x-mod
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-706236-27160/root/chroot_tmpdir/scmroot/golang-x-mod'...
$ git fetch origin 8d90118560f8fae6b2213fcdcbb79b7a5c36e4a6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-x-mod
 * [new ref]         8d90118560f8fae6b2213fcdcbb79b7a5c36e4a6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d90118 Update to latest version (#2136475)