Re: how to control isearch for invisible text

[Richard Stallman]

    > I think `occur' always makes things visible because it copies text
    > and overlays are not copied along, so the invisibility gets lost.  I
    > do think query-replace should be improved to open invisible text
    > just like isearch does.

I agree that query-replace should show invisible text
when a match occurs inside it.

Would someone like to implement that?

What is `preview-open-overlays'?  It is not part of Emacs.