$ git clone -n https://src.fedoraproject.org/rpms/java-diff-utils.git /var/lib/mock/f39-build-1567779-37600/root/chroot_tmpdir/scmroot/java-diff-utils
Cloning into '/var/lib/mock/f39-build-1567779-37600/root/chroot_tmpdir/scmroot/java-diff-utils'...
$ git fetch origin 5cdc5266abbbe0a07759aa6b26123046be22b8f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/java-diff-utils
 * [new ref]         5cdc5266abbbe0a07759aa6b26123046be22b8f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5cdc526 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild