title: ReSharper autocompletion bug? with lambda scratch arguments
body: <p>I'm using ReSharper 9.2. Example code:</p>
  
  <pre><code>class Foo
  {
     private int _someField;
     private int _someOtherField;
  
     public Foo()
     {
        Action&lt;int, int&gt; a = (_, __) =&gt; { };
     }
  }
  </code></pre>
  
  <p>As soon as I type type the ',' after the '_', R# decides I must <em>really</em> mean <code>_someField</code>, and <em>automatically inserts it</em>. I have all three options (Symbol completion, Smart completion, and Import completion) unchecked under Options > Environment > IntelliSense > "Automatically complete single item with". But I suspect this feature is not the cause of the bug because there are 2 fields that begin with <code>_</code>, so there should be more than a single item in the suggestion list.</p>
  
  <p>It also isn't due to <code>_</code> being treated as a magic character; if I name the fields <code>xSomeField</code> and <code>xSomeOtherField</code> and call the scratch variable <code>x</code>, I get the same thing.</p>
  
  <p>Is there any way to prevent this?</p>