Fix order initialization to allow initial_clip to be properly played

(cherry picked from commit ea97d44)

modules/interactive_music/audio_stream_interactive.cpp

@@ -486,8 +486,6 @@ void AudioStreamInteractive::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_clip_auto_advance_next_clip", "clip_index", "auto_advance_next_clip"), &AudioStreamInteractive::set_clip_auto_advance_next_clip);
 	ClassDB::bind_method(D_METHOD("get_clip_auto_advance_next_clip", "clip_index"), &AudioStreamInteractive::get_clip_auto_advance_next_clip);
 
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "initial_clip", PROPERTY_HINT_ENUM, "", PROPERTY_USAGE_DEFAULT), "set_initial_clip", "get_initial_clip");
-
 	ADD_PROPERTY(PropertyInfo(Variant::INT, "clip_count", PROPERTY_HINT_RANGE, "1," + itos(MAX_CLIPS), PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_ARRAY, "Clips,clip_,page_size=999,unfoldable,numbered,swap_method=_inspector_array_swap_clip,add_button_text=" + String(RTR("Add Clip"))), "set_clip_count", "get_clip_count");
 	for (int i = 0; i < MAX_CLIPS; i++) {
 		ADD_PROPERTYI(PropertyInfo(Variant::STRING_NAME, "clip_" + itos(i) + "/name", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_INTERNAL), "set_clip_name", "get_clip_name", i);
@@ -496,6 +494,9 @@ void AudioStreamInteractive::_bind_methods() {
 		ADD_PROPERTYI(PropertyInfo(Variant::INT, "clip_" + itos(i) + "/next_clip", PROPERTY_HINT_ENUM, "", PROPERTY_USAGE_DEFAULT | PROPERTY_USAGE_INTERNAL), "set_clip_auto_advance_next_clip", "get_clip_auto_advance_next_clip", i);
 	}
 
+	// Needs to be registered after `clip_*` properties, as it depends on them.
+	ADD_PROPERTY(PropertyInfo(Variant::INT, "initial_clip", PROPERTY_HINT_ENUM, "", PROPERTY_USAGE_DEFAULT), "set_initial_clip", "get_initial_clip");
+
 	// TRANSITIONS
 
 	ClassDB::bind_method(D_METHOD("add_transition", "from_clip", "to_clip", "from_time", "to_time", "fade_mode", "fade_beats", "use_filler_clip", "filler_clip", "hold_previous"), &AudioStreamInteractive::add_transition, DEFVAL(false), DEFVAL(-1), DEFVAL(false));