bug#43496: 28.0.50; [PATCH] Fix edge case in gnus-summary-catchup-from-here

[Alex Bochannek]

The gnus-summary-catchup-from-here function also marks the current
article, which it fails to do if that article is the last one in the
summary buffer.

diff --git a/lisp/gnus/gnus-sum.el b/lisp/gnus/gnus-sum.el
index 2f0ea0c58f..8e27a94e5b 100644
--- a/lisp/gnus/gnus-sum.el
+++ b/lisp/gnus/gnus-sum.el
@@ -11537,7 +11537,7 @@ gnus-summary-catchup-from-here
     (gnus-save-hidden-threads
       (let ((beg (point)))
        ;; We check that there are unread articles.
-       (when (or all (gnus-summary-find-next))
+       (when (or all (gnus-summary-last-article-p) (gnus-summary-find-next))
          (gnus-summary-catchup all t beg nil t)))))
   (gnus-summary-position-point))

-- 
Alex.