> > Well, unless someone explains convincingly how the current behaviour is
> > desireable (rather than misleading and useless), I really think this is
> > a bug that should be fix (then we can also discuss what the fix should
> > exactly be).
> 
> So please propose a fix.

Well, in case you didn't notice, a fix was already proposed :)
(not in proper form, granted, and lacking a test)

At least now you won't argue that this is normal behaviour, so we are
progressing.