0.48 bug: wrong-type-argument integer-or-marker-p nil

0.48 bug: wrong-type-argument integer-or-marker-p nil

[Vladimir Volovich]

Hi,

i received a message with alternative text and html parts. i clicked
html part, and gnus suggested to save that part in a file (i do not
have a w3 installed). i pressed C-g. Then i clicked the text part, and
got the following error:

Signaling: (wrong-type-argument integer-or-marker-p nil)
  gnus-mime-display-alternative(((#<buffer  *mm*> ("text/plain" ...) 7bit nil nil nil) (#<buffer  *mm*<2>> ("text/html" ...) quoted-printable #<buffer *mm*> nil nil)) "text/plain" (#<marker at 1343 in *Article*>) 1)
  (lambda (handles) (gnus-mime-display-alternative (quote ...) "text/plain" (quote ...) 1))((#<buffer  *mm*> ("text/plain" (charset . "Windows-1251")) 7bit nil nil nil))
  gnus-article-press-button()
  gnus-widget-press-button((link :delete widget-leave-text :action gnus-widget-press-button :button-keymap nil :from #<marker (before-insertion) at 1347 in *Article*> :to #<marker at 1369 in *Article*> :button-overlay #<overlay from 1347 to 1369 in *Article*>) (mouse-2 (#<window 10 on *Article*> 1365 (177 . 97) -125707805)))
  widget-apply((link :delete widget-leave-text :action gnus-widget-press-button :button-keymap nil :from #<marker (before-insertion) at 1347 in *Article*> :to #<marker at 1369 in *Article*> :button-overlay #<overlay from 1347 to 1369 in *Article*>) :action (mouse-2 (#<window 10 on *Article*> 1365 (177 . 97) -125707805)))
  widget-apply-action((link :delete widget-leave-text :action gnus-widget-press-button :button-keymap nil :from #<marker (before-insertion) at 1347 in *Article*> :to #<marker at 1369 in *Article*> :button-overlay #<overlay from 1347 to 1369 in *Article*>) (mouse-2 (#<window 10 on *Article*> 1365 (177 . 97) -125707805)))
  widget-button-click((down-mouse-2 (#<window 10 on *Article*> 1365 (177 . 97) -125707915)))
* call-interactively(widget-button-click)

	Best regards, -- Vladimir.