Small fixes (#2079)

* Adjust style cloning logic

* Emit Background Changed signal even when no Backgroundholder is present

addons/dialogic/Modules/Background/subsystem_backgrounds.gd

@@ -40,10 +40,12 @@ func update_background(scene := "", argument := "", fade_time := 0.0, transition
 		background_holder = dialogic.Styles.get_first_node_in_layout('dialogic_background_holders')
 	else:
 		background_holder = get_tree().get_first_node_in_group('dialogic_background_holders')
+
+	var info := {'scene':scene, 'argument':argument, 'fade_time':fade_time, 'same_scene':false}
 	if background_holder == null:
+		background_changed.emit(info)
 		return
 
-	var info := {'scene':scene, 'argument':argument, 'fade_time':fade_time, 'same_scene':false}
 
 	var bg_set := false
 

addons/dialogic/Resources/dialogic_style.gd

@@ -174,7 +174,7 @@ func clone() -> DialogicStyle:
 	var style := DialogicStyle.new()
 	style.name = name
 	if base_scene != null:
-		style.base_scene = base_scene.duplicate()
+		style.base_scene = base_scene
 	style.inherits = inherits
 	style.base_overrides = base_overrides
 	for layer_idx in range(get_layer_count()):