[patch] IM-status of File select dialog is reflected Vim's in normal mode. [MS-Windows]

[h_east]

hi Bram,

How to reproduce
- exec gvim.exe on MS-Windows.
- :browse w
- IM(Input method) is On in filename textbox.
- "Cancel" click.

Expect behavior
  IM is Off.

Actual behavior
  IM is On (in normal mode!!)

Below is patch. Please check.

Regards,
--
Hirohito Higashi

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diff -r 161d01cbb165 src/message.c
--- a/src/message.c	Fri Apr 13 23:04:47 2012 +0200
+++ b/src/message.c	Thu Apr 19 00:38:27 2012 +0900
@@ -3745,6 +3745,9 @@
     static char_u	*last_dir = NULL;    /* last used directory */
     char_u		*tofree = NULL;
     int			save_browse = cmdmod.browse;
+# ifdef USE_IM_CONTROL
+    int			old_im_stat = im_get_status();
+# endif
 
     /* Must turn off browse to avoid that autocommands will get the
      * flag too!  */
@@ -3880,6 +3883,11 @@
 	}
     }
 
+# ifdef USE_IM_CONTROL
+    /* Restore the Input Method. */
+    im_set_active(old_im_stat);
+# endif
+
     vim_free(tofree);
     cmdmod.browse = save_browse;