$ git clone -n https://src.fedoraproject.org/rpms/modello.git /var/lib/mock/f41-build-1302987-23490/root/chroot_tmpdir/scmroot/modello
Cloning into '/var/lib/mock/f41-build-1302987-23490/root/chroot_tmpdir/scmroot/modello'...
$ git fetch origin 0ec59091a1c829c8b2b4b48ca4d8e8b631af3fd7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/modello
 * [new ref]         0ec59091a1c829c8b2b4b48ca4d8e8b631af3fd7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0ec5909 Extract smoke tests out of test plan