$ git clone -n https://src.fedoraproject.org/rpms/python-pikepdf.git /var/lib/mock/f41-build-855874-167429/root/chroot_tmpdir/scmroot/python-pikepdf
Cloning into '/var/lib/mock/f41-build-855874-167429/root/chroot_tmpdir/scmroot/python-pikepdf'...
$ git fetch origin f2cb01b674304a61944279a650847f5340a70c7e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pikepdf
 * [new ref]         f2cb01b674304a61944279a650847f5340a70c7e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f2cb01b Update to 9.3.0 upstream release