Fix bug #18545 with lack of scrolling a window when point goes out of view.

 src/xdisp.c (cursor_row_fully_visible_p): Update commentary.
 (redisplay_window): Treat the frame's frozen_window_starts flag
 the same way as the optional_new_start flag for the window: only
 obey it if the glyph row showing point will be fully visible.
 Likewise when the window start is in a continuation line.  If,
 after trying everything under the 'force_start' label, point is
 still not fully visible, give up and scroll the window.  Add
 debugging traces.
 src/window.c (Frecenter): Set the window's redisplay flag.

1 files changed, 13 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index a5c25ab7168..cc04e0cd826 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,16 @@
+2014-09-29  Eli Zaretskii  <eliz@gnu.org>
+
+        * xdisp.c (cursor_row_fully_visible_p): Update commentary.
+        (redisplay_window): Treat the frame's frozen_window_starts flag
+        the same way as the optional_new_start flag for the window: only
+        obey it if the glyph row showing point will be fully visible.
+        Likewise when the window start is in a continuation line.  If,
+        after trying everything under the 'force_start' label, point is
+        still not fully visible, give up and scroll the window.  Add
+        debugging traces.  (Bug#18545)
+
+        * window.c (Frecenter): Set the window's redisplay flag.
+
 2014-09-24  Eli Zaretskii  <eliz@gnu.org>
 
         * w32term.c (w32_read_socket): Don't use frame dimensions for