title: Thymeleaf preprocessed expression cannot have brankets appended
body: <p>No matter whether I append () or &#40;&#41; at the end of the preprocessed expression, Thymeleaf doesn't substitute the preprocessed expression with its value. Strange enough, But it looks Ok the preprocessed expression append "aa"</p>
  
  <p>Here is the html:</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;* href="javascript:void(0)" class="easyui-linkbutton" th:onclick="submit__${container.name}\__()" style="width:80px"&gt;Submit&lt;/*&gt;
  &lt;* href="javascript:void(0)" class="easyui-linkbutton" th:onclick="submit__${container.name}__aa" style="width:80px"&gt;Clear&lt;/*&gt;
  </code></pre>
  
  <p>Here is the html source after Thymeleaf transformed.</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;* href="javascript:void(0)" class="easyui-linkbutton" onclick="submit__${container.name}__()" style="width:80px"&gt;Submit&lt;*/&gt;
  &lt;* href="javascript:void(0)" class="easyui-linkbutton" onclick="submitformaa" style="width:80px"&gt;Clear&lt;/*&gt;
  </code></pre>
  
  <p>Please help me out of this as it drives me to the wall. Thanks</p>