$ git clone -n https://src.fedoraproject.org/rpms/kglobalacceld.git /var/lib/mock/f42-build-side-1-3577592-46813/root/chroot_tmpdir/scmroot/kglobalacceld
Cloning into '/var/lib/mock/f42-build-side-1-3577592-46813/root/chroot_tmpdir/scmroot/kglobalacceld'...
$ git fetch origin cfdde12718c989c72096a8d62a0129b8c2ca43e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kglobalacceld
 * [new ref]         cfdde12718c989c72096a8d62a0129b8c2ca43e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cfdde12 6.4.1