Do not commit buffer in reset function.

src/IBusChewingEngine.gob

Index: src/IBusChewingEngine.gob
diff --git a/src/IBusChewingEngine.gob b/src/IBusChewingEngine.gob
index 643688a7b89d9d0abd24b5ef0f59d86fe769bf80..d8b3d6adf6bf01dc3e752c5be2bf491a99603408 100644
--- a/src/IBusChewingEngine.gob
+++ b/src/IBusChewingEngine.gob
@@ -937,10 +937,11 @@ class IBus:Chewing:Engine from IBus:Engine{
     reset(IBus:Engine *engine){
 	G_DEBUG_MSG(1,"[I1] reset");
 	Self *self=SELF(engine);
-	if (self->_priv->statusFlags & ENGINE_STATUS_NEED_COMMIT){
-	    /* Force commit non-empty preedit buffer */
-	    self_force_commit(self);
-	}
+
+	/* Always clean buffer */
+	chewing_handle_Esc(self->context);
+	ibus_chewing_engine_clear_status_flag(self, ENGINE_STATUS_NEED_COMMIT | ENGINE_STATUS_FORCE_COMMIT );
+
 	ibus_lookup_table_clear(self->table);
 	/* Save KBType type, ChiEng, and ShapeMode becaue chewing_Reset() will reset them to default.
 	 */