$ git clone -n https://src.fedoraproject.org/rpms/golang-xorm.git /var/lib/mock/f40-build-2246401-53810/root/chroot_tmpdir/scmroot/golang-xorm
Cloning into '/var/lib/mock/f40-build-2246401-53810/root/chroot_tmpdir/scmroot/golang-xorm'...
$ git fetch origin 53711c7c7a4180cf7fa8ac0c095fb4a69b844e42:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-xorm
 * [new ref]         53711c7c7a4180cf7fa8ac0c095fb4a69b844e42 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 53711c7 Orphaned for 6+ weeks