$ git clone -n https://src.fedoraproject.org/rpms/python-testrepository.git /var/lib/mock/f41-build-side-2-python-2716361-30552/root/chroot_tmpdir/scmroot/python-testrepository
Cloning into '/var/lib/mock/f41-build-side-2-python-2716361-30552/root/chroot_tmpdir/scmroot/python-testrepository'...
$ git fetch origin ba7626798ca72d0d7c893321ea89837c5cce2257:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-testrepository
 * [new ref]         ba7626798ca72d0d7c893321ea89837c5cce2257 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba76267 convert ASL 2.0 license to SPDX