defcustom: order matters in `choice' with value-to-internal

[Reiner Steib <reinersteib+gmane@imap.cc>]

Hi,

consider these two defcustoms, which only differ in the order of the
choice elements:

--8<---------------cut here---------------start------------->8---
(defcustom rs-test-1
  "^From:\\|^Newsgroups:\\|^Subject:"
  "doc string 1, list of regexps, regexp or nil"
  :type '(choice
	  (const nil :tag "Use gnus-ignored-headers")
	  regexp
	  (repeat :value-to-internal (lambda (widget value)
				       (custom-split-regexp-maybe value))
		  :match (lambda (widget value)
			   (or (stringp value)
			       (widget-editable-list-match widget value)))
		  regexp)))

(defcustom rs-test-2
  "^From:\\|^Newsgroups:\\|^Subject:"
  "doc string 2, list of regexps, regexp or nil"
  :type '(choice
	  (repeat :value-to-internal (lambda (widget value)
				       (custom-split-regexp-maybe value))
		  :match (lambda (widget value)
			   (or (stringp value)
			       (widget-editable-list-match widget value)))
		  regexp)
	  (const nil :tag "Use gnus-ignored-headers")
	  regexp))
--8<---------------cut here---------------end--------------->8---

In the customize buffer, I get (Emacs 22 branch):

,----[ M-x customize-apropos RET rs-test RET ]
| rs-test-1: [Hide Value] [Value Menu] Regexp: ^From:\|^Newsgroups:\|^Subject:
|    [State]: STANDARD.
| 
| doc string 1, list of regexps, regexp or nil
| Groups: [message-faces]
| 
| rs-test-2: [Hide Value] [Value Menu] Repeat:
| [INS] [DEL] Regexp: ^From:
| [INS] [DEL] Regexp: ^Newsgroups:
| [INS] [DEL] Regexp: ^Subject:
| [INS]
|    [State]: STANDARD.
| 
| doc string 2, list of regexps, regexp or nil
| Groups: [message-faces]
`----

I would have expected the same, split result for both variables.

(BTW, I have now idea why "Groups: [message-faces]" is shown.  Seems
like some random group?)

Bye, Reiner.
-- 
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      (o o)
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