Merge pull request #88280 from groud/fix_tileset_duplication

Fix TileSet sources duplication

scene/resources/tile_set.cpp

@@ -4214,7 +4214,7 @@ void TileSet::_get_property_list(List<PropertyInfo> *p_list) const {
 	// Sources.
 	// Note: sources have to be listed in at the end as some TileData rely on the TileSet properties being initialized first.
 	for (const KeyValue<int, Ref<TileSetSource>> &E_source : sources) {
-		p_list->push_back(PropertyInfo(Variant::INT, vformat("sources/%d", E_source.key), PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NO_EDITOR));
+		p_list->push_back(PropertyInfo(Variant::OBJECT, vformat("sources/%d", E_source.key), PROPERTY_HINT_RESOURCE_TYPE, "TileSetAtlasSource", PROPERTY_USAGE_NO_EDITOR | PROPERTY_USAGE_ALWAYS_DUPLICATE));
 	}
 
 	// Tile Proxies.