#10 "max r-o copies" setting is bogus

[Oswald Buddenhagen]

- the number of copies that can be opened manually is
restricted by the setting - against SET's claims.
- if the max number is exhausted and i try to open a copy
while being in a copy, it focuses the original. not strictly
a bug, but unexpected.
- the setting is pointless at all, because automatically
opening multiple r-o copies is pointless: they are used to
display locations referenced by a message window, and
there is only one active item in that window at a time.

[Oswald Buddenhagen]

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some discussion that followed:

> Well, I think you should set it to 1 and let the users that
> wants it alone ;-)
>
but why would somebody want it? i mean, if you limit the the
count to non-one, it is more or less indeterministic in which
window which error message will be displayed. i don't see any
benefit in having multiple views of a file in this case ...