Honor docstring of gnus-group-get-new-news

* lisp/gnus/gnus-start.el (gnus-get-unread-articles): If the prefix arg
is t, but non-numeric, unconditionally consider all groups to need
updating.

1 files changed, 5 insertions, 5 deletions

diff --git a/lisp/gnus/gnus-start.el b/lisp/gnus/gnus-start.el
index 4efec86f6e0..f2e69781fc1 100644
--- a/lisp/gnus/gnus-start.el
+++ b/lisp/gnus/gnus-start.el
@@ -122,7 +122,6 @@ This variable can be a list of select methods which Gnus will query with
 the `ask-server' method in addition to the primary, secondary, and archive
 servers.
 
-
 E.g.:
   (setq gnus-check-new-newsgroups
         \\='((nntp \"some.server\") (nntp \"other.server\")))
@@ -1673,10 +1672,11 @@ backend check whether the group actually exists."
         (push (setq method-group-list (list method method-type nil nil))
               type-cache))
       ;; Only add groups that need updating.
-      (if (funcall (if one-level #'= #'<=) (gnus-info-level info)
-              (if (eq (cadr method-group-list) 'foreign)
-                  foreign-level
-                alevel))
+      (if (or (and foreign-level (null (numberp foreign-level)))
+           (funcall (if one-level #'= #'<=) (gnus-info-level info)
+                    (if (eq (cadr method-group-list) 'foreign)
+                        foreign-level
+                      alevel)))
           (setcar (nthcdr 2 method-group-list)
                   (cons info (nth 2 method-group-list)))
         ;; The group is inactive, so we nix out the number of unread articles.