Bug #1381

- #1381 Invalid JSON exported by Task 2.3.0-beta1 (thanks to Kosta H).

src/Task.cpp

@@ -797,13 +797,13 @@ std::string Task::composeJSON (bool decorate /*= false*/) const
   Task::const_iterator i;
   for (i = this->begin (); i != this->end (); ++i)
   {
-    if (attributes_written)
-      out << ",";
-
     // Annotations are not written out here.
     if (i->first.substr (0, 11) == "annotation_")
       continue;
 
+    if (attributes_written)
+      out << ",";
+
     std::string type = Task::attributes[i->first];
     if (type == "")
       type = "string";