Avoiding moving point into minibuffer prompt area

[Lennart Borgman]

I think it is quite confusing that you can move the point into the 
prompt area in the minibuffer. Why don't we use something like the code 
below to avoid this:

(defun minibuff-post-command()
 (when (active-minibuffer-window)
   (when (< (point) (minibuffer-prompt-end))
     (forward-char (- (minibuffer-prompt-end) (point))))))

(add-hook 'post-command-hook 'minibuff-post-command)