$ git clone -n https://src.fedoraproject.org/rpms/jfreechart.git /var/lib/mock/f40-build-2552880-61976/root/chroot_tmpdir/scmroot/jfreechart
Cloning into '/var/lib/mock/f40-build-2552880-61976/root/chroot_tmpdir/scmroot/jfreechart'...
$ git fetch origin ce4ef57042ec92fb12800191badc24ea442b0362:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jfreechart
 * [new ref]         ce4ef57042ec92fb12800191badc24ea442b0362 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce4ef57 Rebuilt for java-21-openjdk as system jdk