updated for version 7.3.782
Problem:    Windows: IME composition may use a wrong font.
Solution:   Use 'guifontwide' for IME when it is set. (Taro Muraoka)
diff --git a/src/gui.c b/src/gui.c
index 1470655..6e5d58b 100644
--- a/src/gui.c
+++ b/src/gui.c
@@ -1002,6 +1002,9 @@
     else
 #endif
 	gui.wide_font = font;
+#ifdef FEAT_GUI_MSWIN
+    gui_mch_wide_font_changed();
+#endif
     return OK;
 }
 #endif