title: I cant display fields from a table with an underscore in cakephp3
body: <p>I am getting this error on a field that does exist. I cant display any field from the TutoringTypes table. My connection is wrong and i cant see where I made the mistake as I believe I followed the conventions. However the docs talk about plural table names but give singular variables names as an example?</p>
  
  <p>Column not found: 1054 Unknown column 'tutoring_types.value' in 'field list' </p>
  
  <pre><code>$query3 = $this-&gt;Lessons-&gt;find()
       -&gt;contain(['Tutors', 'TutoringTypes'])
       -&gt;select(['lessons.id','lessons.lesson_date','tutors.id','tutors.first_name','tutors.last_name','lessons.tutoring_type_id',
                    'tutoring_types.value'])      
       -&gt;where(['Lessons.lesson_date &gt;' =&gt; $a3,'Lessons.lesson_date &lt;' =&gt; $a4,
            'OR' =&gt; [['lessons.tutoring_type_id' =&gt; 2], ['lessons.tutoring_type_id' =&gt; 1]]
       ]);     
  
  
  Lessons Model
      public function initialize(array $config)
      {
          parent::initialize($config);
          $this-&gt;belongsTo('TutoringTypes', [
          foreignKey' =&gt; 'tutoring_type_id'
          ]);
  //////
  
  
  SELECT 
    lessons.id AS `lessons__id`, 
    lessons.lesson_date AS `lessons__lesson_date`, 
    tutors.id AS `tutors__id`, 
    tutors.first_name AS `tutors__first_name`, 
    tutors.last_name AS `tutors__last_name`, 
    lessons.tutoring_type_id AS `lessons__tutoring_type_id`, 
    tutoring_types.value AS `tutoring_types__value` 
  FROM 
    lessons Lessons 
    LEFT JOIN tutors Tutors ON Tutors.id = (Lessons.tutor_id) 
    LEFT JOIN tutoring_types TutoringTypes ON TutoringTypes.id = (Lessons.tutoring_type_id) 
  WHERE 
    (
      Lessons.lesson_date &gt; '2015-05-30' 
      AND Lessons.lesson_date &lt; '2016-06-01' 
      AND (
        lessons.tutoring_type_id = '2' 
        OR lessons.tutoring_type_id = '1'
      )
    )
  </code></pre>
  
  <p><a href="http://book.cakephp.org/3.0/en/orm/retrieving-data-and-resultsets.html" rel="nofollow">http://book.cakephp.org/3.0/en/orm/retrieving-data-and-resultsets.html</a>
  <a href="http://book.cakephp.org/3.0/en/intro/conventions.html" rel="nofollow">http://book.cakephp.org/3.0/en/intro/conventions.html</a></p>