(print-help-return-message): When

display-buffer-reuse-frames is set, let the help window been quit,
instead of deleting it, which might delete a reused frame.

1 files changed, 4 insertions, 0 deletions

diff --git a/lisp/help.el b/lisp/help.el
index 2950ffd5929..67a8858473f 100644
--- a/lisp/help.el
+++ b/lisp/help.el
@@ -274,6 +274,10 @@ If FUNCTION is nil, applies `message' to it, thus printing it."
                      ;; Secondly, the buffer has not been displayed yet,
                      ;; so we don't know whether its frame will be selected.
                      nil)
+                    (display-buffer-reuse-frames
+                     (setq help-return-method (cons (selected-window)
+                                                    'quit-window))
+                     nil)
                     ((not (one-window-p t))
                      (setq help-return-method
                            (cons (selected-window) 'quit-window))