Asure buffer-display-table is unique when two or more windows are visible.

2 files changed, 12 insertions, 1 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index 5e932476fbf..8ce630f30b2 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,10 @@
+2009-12-10  Vinicius Jose Latorre  <viniciusjl@ig.com.br>
+
+        * whitespace.el (whitespace-display-char-on): Asure
+        `buffer-display-table' is unique when two or more windows are
+        visible.  Reported by Martin Pohlack <mp26@os.inf.tu-dresden.de>.
+        New version 12.1.
+
 2009-12-10  Eli Zaretskii  <eliz@gnu.org>
 
         * arc-mode.el (archive-rar-summarize): Allow between 6 and 7
diff --git a/lisp/whitespace.el b/lisp/whitespace.el
index 56eebd7f47e..3af0afb8b26 100644
--- a/lisp/whitespace.el
+++ b/lisp/whitespace.el
@@ -6,7 +6,7 @@
 ;; Author: Vinicius Jose Latorre <viniciusjl@ig.com.br>
 ;; Maintainer: Vinicius Jose Latorre <viniciusjl@ig.com.br>
 ;; Keywords: data, wp
-;; Version: 12.0
+;; Version: 12.1
 ;; X-URL: http://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
 
 ;; This file is part of GNU Emacs.
@@ -2388,6 +2388,10 @@ Also refontify when necessary."
         (setq whitespace-display-table-was-local t
               whitespace-display-table
               (copy-sequence buffer-display-table)))
+      ;; asure `buffer-display-table' is unique
+      ;; when two or more windows are visible.
+      (set (make-local-variable 'buffer-display-table)
+           (copy-sequence buffer-display-table))
       (unless buffer-display-table
         (setq buffer-display-table (make-display-table)))
       (dolist (entry whitespace-display-mappings)