title: Multifield component issue
body: <p>I am creating a multifield component having 2 textfields. Following is my dialog xml.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;jcr:root xmlns:cq="http://www.day.com/jcr/cq/1.0" xmlns:jcr="http://www.jcp.org/jcr/1.0"
      jcr:primaryType="cq:Dialog"
      title="dialog"
      xtype="dialog"&gt;
      &lt;items jcr:primaryType="cq:WidgetCollection"&gt;
          &lt;links
              jcr:primaryType="cq:Widget"
              fieldLabel="QuickLinks"
              name="./links"
              xtype="multifield"&gt;
              &lt;fieldConfig
                  jcr:primaryType="cq:Widget"
                  xtype="multifield"&gt;
                  &lt;items jcr:primaryType="cq:WidgetCollection"&gt;
                      &lt;title
                          jcr:primaryType="cq:Widget"
                          fieldLabel="Title"
                          hideLabel="{Boolean}false"
                          name="./jcr:title"
                          xtype="textfield"/&gt;
                      &lt;url
                          jcr:primaryType="cq:Widget"
                          fieldLabel="URL"
                          name="./jcr:url"
                          xtype="textfield"/&gt;
                  &lt;/items&gt;
              &lt;/fieldConfig&gt;
          &lt;/links&gt;
      &lt;/items&gt;
  &lt;/jcr:root&gt;
  </code></pre>
  
  <p>I am able to edit the content, and the content gets saved. However I have 2 problems - 1) When the dialog loads, it is empty always, and it doesnt show the saved content when I reopen the dialog 2) The up and down arrows are not working any more. Any suggestions to fix these is highly appreciated. Thank you very much.</p>