$ git clone -n https://src.fedoraproject.org/rpms/python-tables.git /var/lib/mock/f41-build-side-2-python-2728038-30787/root/chroot_tmpdir/scmroot/python-tables
Cloning into '/var/lib/mock/f41-build-side-2-python-2728038-30787/root/chroot_tmpdir/scmroot/python-tables'...
$ git fetch origin d26d76b5243ad8ec59423e553bfba1b61f32ff04:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-tables
 * [new ref]         d26d76b5243ad8ec59423e553bfba1b61f32ff04 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d26d76b Version 3.10.1