bug#9598: 24.0.50; completion goes too far

[Richard Stallman]

    > When in the *mail* buffer, I found that C-x b *ma TAB offered me
    [...]
    > and did not mention *mail* at all.

    That's on purpose: C-x b is about moving to another buffer, so it
    explicitly excludes the current buffer.

TAB excludes the current buffer from completion, so that you can
more often get a useful completion result.

However, listing the available completions is a different issue.
Omitting the current buffer there is not beneficial; it only gives
the user less useful information.  There, the current buffer
should be included.

Basically, try-complete should exclude the current buffer
but all-completions should include it.


-- 
Dr Richard Stallman
President, Free Software Foundation
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