$ git clone -n https://src.fedoraproject.org/rpms/jgoodies-common.git /var/lib/mock/f40-build-2540261-61859/root/chroot_tmpdir/scmroot/jgoodies-common
Cloning into '/var/lib/mock/f40-build-2540261-61859/root/chroot_tmpdir/scmroot/jgoodies-common'...
$ git fetch origin 22aac84a79557101b9b76ccc28f0311df052223a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jgoodies-common
 * [new ref]         22aac84a79557101b9b76ccc28f0311df052223a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 22aac84 Rebuilt for java-21-openjdk as system jdk