Re: I-search: Clicking in minibuf during I-search fails.

[Richard Stallman]

    This bug is caused by the hack in `isearch-edit-string' that uses

        (let ((cursor-in-echo-area t))
             (read-event))

    before reading the search string in the minibuffer with
    `read-from-minibuffer'.  When clicking mouse-1 in `read-event'
    above, it incorrectly handles the mouse click.

Why does this code handle the mouse-click at all?
It ought to just return the event, right?