$ git clone -n https://src.fedoraproject.org/rpms/python-more-itertools.git /var/lib/mock/f40-build-2222800-52712/root/chroot_tmpdir/scmroot/python-more-itertools
Cloning into '/var/lib/mock/f40-build-2222800-52712/root/chroot_tmpdir/scmroot/python-more-itertools'...
$ git fetch origin 1e517bb4855e509533788fca65a656a95d055b46:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-more-itertools
 * [new ref]         1e517bb4855e509533788fca65a656a95d055b46 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1e517bb Use canonical upstream URL.