title: jQuery 1.6.4 and RadioButtonList issue
body: <p>Moving from jQuery 1.4.4 to jquery 1.6.4 started breaking my code related to radiobuttonlist.</p>
  
  <p>Here is a sample code and steps to replicate weird behavior:</p>
  
  <p>Steps to reproduce:</p>
  
  <p>1: Radio A is already selected.</p>
  
  <p>2: Select radio B</p>
  
  <p>3: Enter something in textbox and tab out.</p>
  
  <p>You will see: <strong>A is checked and B is checked alerts.</strong></p>
  
  <p>So what exactly changed from 1.6.4 to 1.4.4 that is causing it to break? </p>
  
  <pre><code>&lt;html xmlns="http://www.w3.org/1999/xhtml"&gt;
  &lt;head runat="server"&gt;
      &lt;title&gt;&lt;/title&gt;
          &lt;script src="http://ajax.microsoft.com/ajax/jquery/jquery-1.6.4.min.js" type="text/javascript"&gt;&lt;/script&gt;
      &lt;script type="text/javascript"&gt;
          function txtchanged(tb) {
              $(".rbl").find("input[type='radio']").each(function () {
                  alert($(this).val() + " " + $(this).attr("checked"));
              });
          }
      &lt;/script&gt;
  &lt;/head&gt;
  &lt;body&gt;
      &lt;form id="form1" runat="server"&gt;
      &lt;asp:RadioButtonList ID="RadioButtonList1" runat="server" CssClass="rbl"&gt;
          &lt;asp:ListItem Text="A" Value="A" Selected="True" /&gt;
           &lt;asp:ListItem Text="B" Value="B" /&gt;
      &lt;/asp:RadioButtonList&gt;
      &lt;asp:TextBox ID="tb" runat="server" CssClass="tb" onblur="txtchanged(this)"&gt;&lt;/asp:TextBox&gt;
      &lt;/form&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>