fix pause->play的时候，loading 状态异常

Author: bosscheng

demo/public/decoder.js

@@ -1,6 +1,6 @@
 {
     "name": "jessibuca",
-    "version": "3.3.14",
+    "version": "3.3.15",
     "scripts": {
         "build": "npx cross-env NODE_ENV=production rollup -c",
         "build:wasm": "python wasm/make.py --wasm && npm run build && npm run build:demo",

demo/public/decoder.js.map

@@ -473,7 +473,7 @@ export default class Player extends Emitter {
             if (!url && !this._opt.url) {
                 return reject();
             }
-
+            this._closed = false;
             this.loading = true;
             this.playing = false;
             this._times.playInitStart = now();