$ git clone -n https://src.fedoraproject.org/rpms/python-tables.git /var/lib/mock/f39-build-1783482-41570/root/chroot_tmpdir/scmroot/python-tables
Cloning into '/var/lib/mock/f39-build-1783482-41570/root/chroot_tmpdir/scmroot/python-tables'...
$ git fetch origin 34331493747fb6a9ec9625311ce2539ae613bbf0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-tables
 * [new ref]         34331493747fb6a9ec9625311ce2539ae613bbf0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3433149 Allow tests to be skipped