IE 中的 Jquery 可排序错误

Question

在 IE 7 和 8 中排序时出现一些相当不寻常的错误（在 9 中工作正常）。

http://jsfiddle.net/pC5qg/

Jquery：

$(".first, .second, .third").sortable({
    update : function (event, ui) {

        var listItem = $(this).sortable('toArray');
        var string = "navOrder=1&listItem=" + listItem;

    }
});   

HTML：

<ul class="first">
  <li id="4">Learn More About The Law
    <ul class="second">
      <li id="49">ACA Overview</li>
      <li id="45">Timelines
        <ul class="third">
          <li id="31">Already in Effect</li>
          <li id="55">2012 Timeline</li>
          <li id="56">2013 Timeline</li>
          <li id="57">2014 Timeline</li>
          <li id="58">2015 and on</li>
        </ul>
      </li>
    </ul>
  </li>
  <li id="2">How Will Reform Affect Me?
    <ul class="second">
      <li id="32">I Have a Pre-existing Condition</li>
      <li id="47">I Have Medicare
        <ul class="third">
          <li id="54">Medicare Insert</li>
          <li id="20">Overview of Medicare Changes</li>
          <li id="21">Medicare Advantage Plans</li>
          <li id="22">Medicare Part D</li>
        </ul>
      </li>
      <li id="50">I Have Insurance
        <ul class="third">
          <li id="51">I Have Insurance From My Employer</li>
          <li id="52">I Buy My Own Insurance</li>
        </ul>
      </li>
      <li id="48">Small Businesses
        <ul class="third">
          <li id="42">Small Business Tax Credits</li>
          <li id="28">Grants for Small Business Wellness Programs</li>
          <li id="27">Free Choice Voucher</li>
        </ul>
      </li>
      <li id="53">Large Businesses
        <ul class="third">
          <li id="38">Large Employer Insurance Requirement</li>
          <li id="39"> Am I a Large Employer?</li>
          <li id="44">Large Employer Fines</li>
        </ul>
      </li>
    </ul>
  </li>
  <li id="3">Is What I Hear True?
    <ul class="second">
      <li id="59">Why should I care about healthcare reform?</li>
      <li id="40">Will the government have a say in my end-of-life decisions?</li>
      <li id="41">Will Medicare services be cut to control costs?</li>
      <li id="43">Will public funds be used to pay for abortions?</li>
    </ul>
  </li>
  <li id="5">Resources
    <ul class="second">
      <li id="33">External Resources</li>
    </ul>
  </li>
</ul>

Answer 1

该问题已通过升级到 Jquery 1.5.2 和 UI 1.8.13 得到解决

Answer 2

我认为异常实际上是在 jsfiddle 中，而不是在 sortable 中：闯入调试器并跟踪调用堆栈表明 http://jsfiddle.net/codemirror/js/editor.js 在 scheduleHighlight 方法中（根据 Visual Studio 第 1369 行） 。跟踪跟踪后，实际崩溃位于 http://jsfiddle.net/codemirror/js/select.js 第 167 行：在某些 IE 版本中尝试选择范围会导致崩溃。

错误发生在jsfiddle之外吗？