$ git clone -n https://src.fedoraproject.org/rpms/jfreechart.git /var/lib/mock/f41-build-797172-13657/root/chroot_tmpdir/scmroot/jfreechart
Cloning into '/var/lib/mock/f41-build-797172-13657/root/chroot_tmpdir/scmroot/jfreechart'...
$ git fetch origin ef6f8b0722a968eacecf9490e9af7aba66ead5c6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jfreechart
 * [new ref]         ef6f8b0722a968eacecf9490e9af7aba66ead5c6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef6f8b0 Rebuilt for java-21-openjdk as system jdk