(jit-lock-fontify-now): Preserve the buffer's

modification status when forcing the second redisplay.

2 files changed, 15 insertions, 4 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index dc624acb0be..a92c989b9b5 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2006-08-02  Stefan Monnier  <monnier@iro.umontreal.ca>
+
+        * jit-lock.el (jit-lock-fontify-now): Preserve the buffer's
+        modification status when forcing the second redisplay.
+
 2006-08-03  Kim F. Storm  <storm@cua.dk>
 
         * edmacro.el (edmacro-fix-menu-commands): Ignore switch-frame.
diff --git a/lisp/jit-lock.el b/lisp/jit-lock.el
index 7077d7880eb..4d7afe8c33f 100644
--- a/lisp/jit-lock.el
+++ b/lisp/jit-lock.el
@@ -31,6 +31,8 @@
 
 
 (eval-when-compile
+  (require 'cl)
+
   (defmacro with-buffer-unmodified (&rest body)
     "Eval BODY, preserving the current buffer's modified state."
     (declare (debug t))
@@ -384,10 +386,14 @@ Defaults to the whole buffer.  END can be out of bounds."
            ;; eagerly extend the refontified region with
            ;; jit-lock-after-change-extend-region-functions.
            (when (< start orig-start)
-             (run-with-timer
-              0 nil `(lambda ()
-                       (put-text-property ',start ',orig-start
-                                          'fontified t ',(current-buffer)))))
+             (lexical-let ((start start)
+                           (orig-start orig-start)
+                           (buf (current-buffer)))
+               (run-with-timer
+                0 nil (lambda ()
+                        (with-buffer-prepared-for-jit-lock
+                            (put-text-property start orig-start
+                                               'fontified t buf))))))
 
            ;; Find the start of the next chunk, if any.
            (setq start (text-property-any next end 'fontified nil))))))))