bug#12001: 24.1.50; vc-diff always talks to CVS repository

[Richard Stallman]

    make-version-backups-p only returns non-nil for VCS that don't have the
    original version locally.

    > Indeed, vc-bzr-make-version-backups-p is not defined.
    > Should it be?

    No VCS other than CVS should need it.

I am using bzr, and apparently bzr needs this,
because vc-diff DOES NOT find the unmodified version
except by connecting to the server.

So either there is some other bug,
or vc-bzr-make-version-backups-p ought to be defined.

Or did I misunderstand something?

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Dr Richard Stallman
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