[]小游戏环境下 声音的缓存机制导致更换声音文件失败

在wxmini中关于声音的管理

__proto.load = function (url) {
            url = URL.formatURL(url);
            this.url = url;
            this.readyUrl = url;
            if (MiniSound._audioCache[this.readyUrl]) {
                this.event(/*laya.events.Event.COMPLETE*/"complete");
                return;
            }
            console.log(url);
            if (MiniAdpter.autoCacheFile && MiniFileMgr.getFileInfo(url)) {
                console.log('from cacheFile');
                this.onDownLoadCallBack(url, 0);
            } else {
                if (!MiniAdpter.autoCacheFile) {
                    this.onDownLoadCallBack(url, 0);
                } else {
                    console.log('dow file');
                    MiniFileMgr.downOtherFiles(url, Handler.create(this, this.onDownLoadCallBack, [url]), url);
                }
            }
        }
 
 

MiniFileMgr.getFileInfo = function (fileUrl) {
            var fileNativePath = fileUrl.split("?")[0];
            var fileObj = MiniFileMgr.filesListObj[fileNativePath];
            if (fileObj == null)
                return null;
            else
                return fileObj;
            return null;
        }
 
getFileInfo 忽略？之后的版本号，导致版号失效