title: jQuery Validate plugin - display error message only if specific message
body: <p>I'd like to display error message only if it's a specific message.
  If the error text is not the one I expect, it will not be displayed.</p>
  
  <p>Here is my code:</p>
  
  <pre><code>rules: {
          telephone: {
              required: true,
              phoneFR: true,
              remote: {
                    url: 'validate_customer.php',
                    type: "post",
                    data: {
                        telephone: function() {
                            return $('#new-customer-formulaire :input[name="telephone"]').val();
                        },
                        nom: function() {
                            return $('#new-customer-formulaire :input[name="nom"]').val();
                        },
                        prenom: function() {
                            return $('#new-customer-formulaire :input[name="prenom"]').val();
                        }
                    }
                }
          }       
  },
  messages: {
          telephone: {
              remote: "Un client existe déjà dans la base avec le même nom, prénom et n° de téléphone."
          }
  },
  errorPlacement: function(error,element) {
           if (error.prop("textContent") == "Un client existe déjà dans la base avec le même nom, prénom et n° de téléphone.") error.insertAfter(element);
           else return true;          
        },
  </code></pre>
  
  <h2>The problem is that</h2>
  
  <p>if the remote message appears first (so if an user with same first name, last name and phone number already exists in the database), it shows the message for the required and phoneFR rules after. But I would like to prevent it, and only show the message for the remote rule</p>