[mutter] Fix updating overlay key keycode when keymap changes

[Owen Taylor <otaylor src gnome org>]

commit b031543f5ad4fb486b2c18bf1f7d950be5182d39
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Mon Nov 22 16:10:34 2010 -0500

    Fix updating overlay key keycode when keymap changes
    
    overlay_key_combo needs the same treatment as other keycodes on a
    change - we should always recompute it if we have a keysym not
    a keycode, and not only if the keycode hasn't already been
    computed.

 src/core/keybindings.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)
---
diff --git a/src/core/keybindings.c b/src/core/keybindings.c
index ef3583e..6d93e97 100644
--- a/src/core/keybindings.c
+++ b/src/core/keybindings.c
@@ -233,9 +233,8 @@ reload_keycodes (MetaDisplay *display)
 {
   meta_topic (META_DEBUG_KEYBINDINGS,
               "Reloading keycodes for binding tables\n");
-  
-  if (display->overlay_key_combo.keysym 
-      && display->overlay_key_combo.keycode == 0)
+
+  if (display->overlay_key_combo.keysym != 0)
     {
       display->overlay_key_combo.keycode = XKeysymToKeycode (
           display->xdisplay, display->overlay_key_combo.keysym);