$ git clone -n https://src.fedoraproject.org/rpms/miracle-wm.git /var/lib/mock/f41-build-846577-163119/root/chroot_tmpdir/scmroot/miracle-wm
Cloning into '/var/lib/mock/f41-build-846577-163119/root/chroot_tmpdir/scmroot/miracle-wm'...
$ git fetch origin d4e0a571679abd29cfdb43f59ad15b531272b5a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/miracle-wm
 * [new ref]         d4e0a571679abd29cfdb43f59ad15b531272b5a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d4e0a57 Merge branch 'rawhide' into f41