Call try_scrolling even if buffer's clip_changed flag is set.

 src/xdisp.c (redisplay_window): Don't check buffer's clip_changed
 flag as a prerequisite for invoking try_scrolling.  (Bug#6671)

src/ChangeLog

+2011-03-26  Eli Zaretskii  <eliz@gnu.org>
+
+	* xdisp.c (redisplay_window): Don't check buffer's clip_changed
+	flag as a prerequisite for invoking try_scrolling.  (Bug#6671)
+
 2011-03-26  Juanma Barranquero  <lekktu@gmail.com>
 	* w32.c (read_unc_volume): Use parameter `henum', instead of

src/xdisp.c

@@ -14176,7 +14176,6 @@ redisplay_window (Lisp_Object window, int just_this_one_p)
        || temp_scroll_step
        || NUMBERP (BVAR (current_buffer, scroll_up_aggressively))
        || NUMBERP (BVAR (current_buffer, scroll_down_aggressively)))
-      && !current_buffer->clip_changed
       && CHARPOS (startp) >= BEGV
       && CHARPOS (startp) <= ZV)
     {