How to fix arnesi:clean-op.

[73budden .]

I just noticed that touching sources helps a bit to work around this
bug, nothing more. Maybe :force helps too, but I didn't check that.

>Note that I'm not interested in working on this bug at this point, but
>will happily help clean up and merge a patch that you'd submit.

>>> 3. Am I right that bug with incorrect system definition which loads
>>> "successfully" is not fixed yet? Touching the source would help to
>>> work around it.