Re: query-replace-interactive

[Richard Stallman]

    but M-% invoked not from isearch could provide the last search string
    by M-n.

That sounds like a good and unproblematical idea.  Right now there is
no default for the from-string, so it can't cause any trouble to offer
the last search string as a default.

We could then perhaps make M-% no longer special in a search.
Instead, the default value would do the whole job.