$ git clone -n https://src.fedoraproject.org/rpms/python-pikepdf.git /var/lib/mock/f41-build-side-1-3134611-39756/root/chroot_tmpdir/scmroot/python-pikepdf
Cloning into '/var/lib/mock/f41-build-side-1-3134611-39756/root/chroot_tmpdir/scmroot/python-pikepdf'...
$ git fetch origin 7a25b84d4246ec7f539d3f586b8a8d6710a693aa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pikepdf
 * [new ref]         7a25b84d4246ec7f539d3f586b8a8d6710a693aa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a25b84 Update to 9.4.2 upstream release