Updated builds.

build/three.js

@@ -14483,8 +14483,7 @@
 
 			if (lists.has(scene) === false) {
 				list = new WebGLRenderList(properties);
-				lists.set(scene, []);
-				lists.get(scene).push(list);
+				lists.set(scene, [list]);
 			} else {
 				if (renderCallDepth >= lists.get(scene).length) {
 					list = new WebGLRenderList(properties);
@@ -14991,8 +14990,7 @@
 
 			if (renderStates.has(scene) === false) {
 				renderState = new WebGLRenderState(extensions, capabilities);
-				renderStates.set(scene, []);
-				renderStates.get(scene).push(renderState);
+				renderStates.set(scene, [renderState]);
 			} else {
 				if (renderCallDepth >= renderStates.get(scene).length) {
 					renderState = new WebGLRenderState(extensions, capabilities);

build/three.module.js

@@ -17806,8 +17806,7 @@ function WebGLRenderLists( properties ) {
 		if ( lists.has( scene ) === false ) {
 
 			list = new WebGLRenderList( properties );
-			lists.set( scene, [] );
-			lists.get( scene ).push( list );
+			lists.set( scene, [ list ] );
 
 		} else {
 
@@ -18449,8 +18448,7 @@ function WebGLRenderStates( extensions, capabilities ) {
 		if ( renderStates.has( scene ) === false ) {
 
 			renderState = new WebGLRenderState( extensions, capabilities );
-			renderStates.set( scene, [] );
-			renderStates.get( scene ).push( renderState );
+			renderStates.set( scene, [ renderState ] );
 
 		} else {