$ git clone -n https://src.fedoraproject.org/rpms/rigsync.git /var/lib/mock/f40-build-2215023-52406/root/chroot_tmpdir/scmroot/rigsync
Cloning into '/var/lib/mock/f40-build-2215023-52406/root/chroot_tmpdir/scmroot/rigsync'...
$ git fetch origin 175f2efbdeba137399969e6e212d4ed72b1fd5d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rigsync
 * [new ref]         175f2efbdeba137399969e6e212d4ed72b1fd5d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 175f2ef Include a license identifier in the test