Fallback to body->size if payLoadsize is empty

For some reason body->size is exactly as big as the
payload I'm trying to send (using android app). This is
probably a bug in the Android app, I decided to commit
the workaround anyway so we keep compatibility with
current (and old) versions of the Android app.

CCMAIL: albertvaka@gmail.com

kded/networkpackage.cpp

@@ -112,6 +112,9 @@ bool NetworkPackage::unserialize(const QByteArray& a, NetworkPackage* np)
     }
 
     np->mPayloadSize = variant["payloadSize"].toInt(); //Will return 0 if was not present, which is ok
+    if (np->mPayloadSize == -1) {
+        np->mPayloadSize = np->get<int>("size", -1);
+    }
     np->mPayloadTransferInfo = variant["payloadTransferInfo"].toMap(); //Will return an empty qvariantmap if was not present, which is ok
 
     return true;