Merge remote-tracking branch 'origin/dev' into dev

src/support/DataCenter.ts

@@ -35,7 +35,7 @@ export default class DataCenter extends EventEmitter{
    * @param value
    */
   public set(type: string, key: string, value?) {
-    if (!value) {
+    if (arguments.length <= 2) {
       //if (this.store[type]) console.warn(`This operation will override all ${this.store[type]}`);
       this.store[type] = key;
     } else {