$ git clone -n https://src.fedoraproject.org/rpms/ularn.git /var/lib/mock/f40-build-2206560-52056/root/chroot_tmpdir/scmroot/ularn
Cloning into '/var/lib/mock/f40-build-2206560-52056/root/chroot_tmpdir/scmroot/ularn'...
$ git fetch origin 6e0a504fc6c48d68aaf5337be3c47857e46d64bf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ularn
 * [new ref]         6e0a504fc6c48d68aaf5337be3c47857e46d64bf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6e0a504 Set build_type_safety_c to 0 (#2155503)