(mouse-choose-completion): Use that as the buffer to edit.

1 files changed, 5 insertions, 0 deletions

diff --git a/lisp/mouse.el b/lisp/mouse.el
index 29f866019b2..fb49a2ced32 100644
--- a/lisp/mouse.el
+++ b/lisp/mouse.el
@@ -1206,6 +1206,8 @@ and selects that window."
         choice)
     (save-excursion
       (set-buffer (window-buffer (posn-window (event-start event))))
+      (if completion-reference-buffer
+          (setq buffer completion-reference-buffer))
       (save-excursion
         (goto-char (posn-point (event-start event)))
         (skip-chars-backward "^ \t\n")
@@ -1215,6 +1217,9 @@ and selects that window."
     (set-buffer buffer)
     (mouse-delete-max-match choice)
     (insert choice)
+    ;; Update point in the window that BUFFER is showing in.
+    (let ((window (get-buffer-window buffer t)))
+      (set-window-point window (point)))
     (and (equal buffer (window-buffer (minibuffer-window)))
          (minibuffer-complete-and-exit))))