$ git clone -n https://src.fedoraproject.org/rpms/java_cup.git /var/lib/mock/f39-build-1563148-37474/root/chroot_tmpdir/scmroot/java_cup
Cloning into '/var/lib/mock/f39-build-1563148-37474/root/chroot_tmpdir/scmroot/java_cup'...
$ git fetch origin 98742e2b7ea6fded248d16cdd0f0ff6ec7d502a7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/java_cup
 * [new ref]         98742e2b7ea6fded248d16cdd0f0ff6ec7d502a7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98742e2 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild