$ git clone -n https://src.fedoraproject.org/rpms/python3-docs.git /var/lib/mock/f41-build-side-1-2815404-32952/root/chroot_tmpdir/scmroot/python3-docs
Cloning into '/var/lib/mock/f41-build-side-1-2815404-32952/root/chroot_tmpdir/scmroot/python3-docs'...
$ git fetch origin 8c9a9b93fa5d2c18e8a406673e92b1e5bb4c2b92:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python3-docs
 * [new ref]         8c9a9b93fa5d2c18e8a406673e92b1e5bb4c2b92 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8c9a9b9 Update to 3.13.0rc3