$ git clone -n https://src.fedoraproject.org/rpms/python-limits.git /var/lib/mock/f39-build-1986241-43353/root/chroot_tmpdir/scmroot/python-limits
Cloning into '/var/lib/mock/f39-build-1986241-43353/root/chroot_tmpdir/scmroot/python-limits'...
$ git fetch origin 38790b794d0176fccd67539e58c478ee0207a673:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-limits
 * [new ref]         38790b794d0176fccd67539e58c478ee0207a673 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 38790b7 Update to 3.7.0 (close RHBZ#2251433)