Re: completion in find-file

[Richard M. Stallman]

    I noticed that in the latest build (from cvs), when issueing the
    find-file command (C-x C-f), the SPC does not any longer trigger
    filename completion, as it used to be. Is this deliberately changed?

Yes.  It is not unusual to have spaces in file names.

     If
    so, is there a way to customize it and get back the old behaviour? 

The Emacs Manual says how to customize key bindings.