RE: handling of completion table duplicates

[Drew Adams]

> Thank you, Drew, for that extensive answer.
> 
> So I take it that the absence of any documentation on duplicate removal
> is intentional (or at least it's no oversight) --- the question would
> rather be "why should (or how even could) the handler remove them?"

Not sure whom you're asking or quite what you are asking.
What do you mean by "the handler"?  And are you talking about
vanilla Emacs?  If so, it already removes duplicates.

[Wrt the doc, I think that as long as Emacs keeps the behavior
of deleting duplicates it should document the fact that it does
that.  And if it's not clear enough otherwise, it should say
just what comparison is done to determine sameness.]