keybindings change for recursive minibuffers

[Chris Moore]

In GNU Emacs 22.0.93.9 (i686-pc-linux-gnu, GTK+ Version 2.8.20)
 of 2007-01-27 on trpaslik
configured using `configure  '--with-gtk' '--prefix' '/usr/local' '--with-xpm' 
'--with-jpeg' '--with-png' '--with-gif''



$ emacs -Q
M-x set SPC variable RET enable-recursive-minibuffers RET t RET
C-x C-f
M-x set SPC variable RET        ==> [No match]



ie. notice that initially typing "M-x set SPC variable" will correctly
insert a hyphen between "set" and "variable", and that trying the same
in a recursive minibuffer (inside a find-file prompt) doesn't work.

In a top-level minibuffer:
  SPC runs the command minibuffer-complete-word

In a recursive minibuffer (while find-file's prompt is pending):
  SPC runs the command self-insert-command


Chris.