Fix memory errors in third_party/ibus-chewing/files/src.

src/IBusChewingEngine.gob

Index: src/IBusChewingEngine.gob
diff --git a/src/IBusChewingEngine.gob b/src/IBusChewingEngine.gob
index 7a1c075824f16e002cc0b70fb30e375c857a52df..9dda2a4d5a218b499c138dae66e41fa14e65f707 100644
--- a/src/IBusChewingEngine.gob
+++ b/src/IBusChewingEngine.gob
@@ -275,9 +275,10 @@ class IBus:Chewing:Engine from IBus:Engine{
 	G_DEBUG_MSG(3,"[I3] load_setting()");
 	int i;
 	gchar buf[BUFFER_SIZE_LOCAL];
-	GValue gValue={0};
 
 	for (i=0; propSpecs[i].valueType!=G_TYPE_INVALID;i++){
+	    GValue gValue={0};
+
 	    G_DEBUG_MSG(4,"[I4]  load_setting(), i=%d",i);
 	    if (ibus_config_get_value(self->config, "engine/Chewing",propSpecs[i].key, &gValue)){
 		switch(propSpecs[i].valueType){
@@ -316,7 +317,9 @@ class IBus:Chewing:Engine from IBus:Engine{
 	    /* Add property to dialog */
 	    maker_dialog_add_property(MAKER_DIALOG(self->setting_dialog),&propSpecs[i],buf,self);
 	    maker_dialog_apply_widget_value(MAKER_DIALOG(self->setting_dialog),propSpecs[i].key);
-	    g_value_unset(&gValue);
+	    if (G_IS_VALUE(&gValue)) {
+	        g_value_unset(&gValue);
+            }
 	}
 
 	for (i=0; page_labels[i]!=NULL;i++){