Unable to follow gnus links

[Tom Ed White]

Following gnus links in org fails with the message:

funcall: Wrong number of arguments: ((t) (path _) "Follow the Gnus
message or folder link specified by PATH." (if (string-match
"\\`\\([^#]+\\)\\(#\\(.*\\)\\)?" path) nil (error "Error in Gnus link
%S" path)) (let ((group (match-string-no-properties 1 path)) (article
(match-string-no-properties 3 path))) (org-gnus-follow-link group
article))), 1

The function is org-gnus-open in ol-gnus.el. I found a workaround by
changing the function arguments:

(defun org-gnus-open (path &rest _ moo)

I put the "moo" argument in for testing.

I can eval the original function and run it by itself and it works fine,
so maybe the calling function is passing too many arguments. I believe
the calling function is org-open-at-point from org.el.

I'm running the latest org (20210920) from melpa. The file ol-gnus.el
gets loaded via org module customization.