On 13 Aug 2005, at 15:40, Richard M. Stallman wrote:

> However, I tend to think that the completion definition is not
> essential, and is better for advanced users, while it can screw
> beginners who don't know enough to use C-q SPC.  Therefore,
> I have concluded we should redefine SPC.
>
> Would someone like to implement this change, and ack to me?


Done. The patch is attached. Please apply if it's OK - I can't.
Maybe this needs to be documented in NEWS as well.

src/ChangeLog:

2005-10-15  David Reitter  <david.reitter@gmail.com>

         * minibuf.c (keys_of_minibuf): Do not map Space to  
minibuffer-complete-word.


lisp/ChangeLog:

2005-10-15  David Reitter <david.reitter@gmail.com>

         * complete.el (PC-bindings): Do not map Space to
         minibuffer-complete-word when restoring the keymap.