title: Issue with xmpp - message archiving management time span
body: <p>I am using openfire 4.2.0 and monitoring plugin 1.6.0 for xmpp chat.</p>
  
  <p>for fetching chat history via XEP-0313 [MAM]</p>
  
  <p>I am using following stanza for query.</p>
  
  <pre><code>&lt;iq type="set" id="dev69"&gt;
  &lt;query
      xmlns="urn:xmpp:mam:1" queryid="0D57123A-6B7D-47AF-9EED-4E6870FD9615"&gt;
      &lt;x
          xmlns="jabber:x:data" type="submit"&gt;
          &lt;field var="start"&gt;
              &lt;value&gt;2018-07-12T07:05:08.008Z&lt;/value&gt;
          &lt;/field&gt;
          &lt;field var="end"&gt;
              &lt;value&gt;2018-07-12T07:06:40.040Z&lt;/value&gt;
          &lt;/field&gt;
          &lt;field var="with"&gt;
              &lt;value&gt;dev60@dev.myapp.com&lt;/value&gt;
          &lt;/field&gt;
          &lt;field var="FORM_TYPE" type="hidden"&gt;
              &lt;value&gt;urn:xmpp:mam:1&lt;/value&gt;
          &lt;/field&gt;
      &lt;/x&gt;
  &lt;/query&gt;
  </code></pre>
  
  <p></p>
  
  <p>And following is the response I got :</p>
  
  <pre><code>&lt;message
  xmlns="jabber:client" to="dev69@dev.myapp.com/19tjt2y06i"&gt;
  &lt;result
      xmlns="urn:xmpp:mam:1" queryid="C1B078F6-829C-474B-8F8A-59C1236AD69C" id="965"&gt;
      &lt;forwarded
          xmlns="urn:xmpp:forward:0"&gt;
          &lt;delay
              xmlns="urn:xmpp:delay" stamp="2018-07-12T06:15:07.985Z"&gt;
          &lt;/delay&gt;
          &lt;message
              xmlns="jabber:client" type="chat" id="87AF91F4-E425-4103-9B71-29AD1ECD1ADD" to="dev60@dev.myapp.com" from="dev69@dev.myapp.com/z9g06o63v"&gt;
              &lt;body&gt;A&lt;/body&gt;
          &lt;/message&gt;
      &lt;/forwarded&gt;
  &lt;/result&gt;
  </code></pre>
  
  <p></p>
  
  <p><strong>MY ISSUE :-</strong> </p>
  
  <p>As you can see the forwarded message I got in response has the time stamp way before the start time of the query stanza. even though I am using correct time format as specified in the docs. I still don't know why this is happening.</p>