$ git clone -n https://src.fedoraproject.org/rpms/python-pikepdf.git /var/lib/mock/f42-build-side-1-3589307-46957/root/chroot_tmpdir/scmroot/python-pikepdf
Cloning into '/var/lib/mock/f42-build-side-1-3589307-46957/root/chroot_tmpdir/scmroot/python-pikepdf'...
$ git fetch origin 73c2aaafe8d9de84a64a3360ba350d9113023a59:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pikepdf
 * [new ref]         73c2aaafe8d9de84a64a3360ba350d9113023a59 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73c2aaa Remove tests skips that were fixed upstream