\\{...} produces duplicate entries

[Drew Adams]

emacs -Q

(define-key minibuffer-local-map [(control ?=)] 'foo)
(define-key minibuffer-local-completion-map [(control ?=)] 'foo)

(defun toto () "\\{minibuffer-local-completion-map}"  4)

C-h f toto shows a duplicate entry for C-=:

toto is a Lisp function.
(toto)

key             binding
---             -------

C-g             abort-recursive-edit
TAB             minibuffer-complete
C-j             exit-minibuffer
RET             exit-minibuffer
ESC             Prefix Command
SPC             minibuffer-complete-word
?               minibuffer-completion-help
C-=             foo
C-=             foo
...

Only a single C-= entry is present in Emacs 20 and Emacs 21.

In GNU Emacs 22.0.96.1 (i386-mingw-nt5.1.2600)
 of 2007-03-21 on LENNART-69DE564
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4) --cflags -Ic:/g/include'