fix: 有进行中的消息进行全排除处理

src/utils/jensen.js

@@ -262,6 +262,7 @@ function Jensen(log, conn) {
   };
 
   this.send = function (cmd, seconds, onprogress) {
+    if (current) return null;
     cmd.sequence(sequence++);
     cmd.onprogress = onprogress;
     if (seconds) cmd.expireAfter(seconds);