Subject: bug#44026: [PATCH] vc.el: vc-revision-other-window does not select the buffer

From: Koichi Arakawa <[email-masked]>
Date: Fri, 16 Oct 2020 12:14:15 +0900 (東京 (標準時))

Hi,

The current version of vc-revision-other-window does not select a
buffer which contains the specified revision.  But ediff-vc-internal,
for example, expects the buffer is selected as the current one.

So I think the following patch is needed.

Regards,
Koichi Arakawa

diff --git a/lisp/vc/vc.el b/lisp/vc/vc.el
index 46c44fa54b..f34bd0f2a1 100644
--- a/lisp/vc/vc.el
+++ b/lisp/vc/vc.el
@@ -2058,13 +2058,12 @@ If `F.~REV~' already exists, use it instead of checking it out again."
      (list
       (vc-read-revision "Revision to visit (default is working revision): "
                         (list buffer-file-name)))))
-  (with-current-buffer (or (buffer-base-buffer) (current-buffer))
-    (vc-ensure-vc-buffer)
-    (let* ((file buffer-file-name)
-	   (revision (if (string-equal rev "")
-		         (vc-working-revision file)
-		       rev)))
-      (switch-to-buffer-other-window (vc-find-revision file revision)))))
+  (vc-ensure-vc-buffer)
+  (let* ((file buffer-file-name)
+	 (revision (if (string-equal rev "")
+		       (vc-working-revision file)
+		     rev)))
+    (switch-to-buffer-other-window (vc-find-revision file revision))))
 
 (defun vc-find-revision (file revision &optional backend)
   "Read REVISION of FILE into a buffer and return the buffer.