Check if packet is type 'publish'. Also, remove from the outgoing que…

…ue only when the client is not clean

lib/client.js

@@ -75,10 +75,10 @@ function Client (broker, conn) {
   }
 
   this.deliverQoS = function deliverQoS (_packet, cb) {
-    var _toForward = _packet
+    var toForward = _packet
     if (_packet.cmd === 'publish') {
-      _toForward = that.broker.authorizeForward(that, _packet)
-      if (!_toForward) {
+      toForward = that.broker.authorizeForward(that, _packet)
+      if (!toForward) {
         if (that.clean === false) {
           that.broker.persistence.outgoingClearMessageId(that, _packet, nop)
         }
@@ -87,10 +87,10 @@ function Client (broker, conn) {
       }
     }
     // downgrade to qos0 if requested by publish
-    if (_toForward.qos === 0) {
-      that.deliver0(_toForward, cb)
+    if (toForward.qos === 0) {
+      that.deliver0(toForward, cb)
     } else {
-      var packet = new QoSPacket(_toForward, that)
+      var packet = new QoSPacket(toForward, that)
       packet.writeCallback = cb
       broker.persistence.outgoingUpdate(that, packet, writeQoS)
     }