$ git clone -n https://src.fedoraproject.org/forks/packit/rpms/python-pikepdf.git /var/lib/mock/f43-build-61073983-6588586/root/chroot_tmpdir/scmroot/python-pikepdf
Cloning into '/var/lib/mock/f43-build-61073983-6588586/root/chroot_tmpdir/scmroot/python-pikepdf'...
$ git fetch origin 102efefe2878feeb9c5382f78d815ba7bcb424d8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/forks/packit/rpms/python-pikepdf
 * [new ref]         102efefe2878feeb9c5382f78d815ba7bcb424d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 102efef Update to 9.10.1 upstream release