title: Save i18n data with associated table
body: <p>I want save language localization data of all the associated table. See below example.</p>
  
  <p>There are two tables <code>Table1</code> &amp; <code>Table2</code></p>
  
  <pre><code>class Table1Table extends App {
     $this-&gt;hasOne('Table');
  }
  
  class Table1Controller extends Controller
  {
     public function index() {
        $data = [
           'Table1' =&gt; [
               'field1' =&gt; 'aaaa'
           ],
           'Table2' =&gt; [
               'field2' =&gt; 'bbbb'
           ]
        ];
  
        $entity = $this-&gt;Table1-&gt;newEntity($data,[
           'associated' =&gt; [
              'Table2'
           ]
        ]);
  
        $entity-&gt;translation('de')-&gt;set('field1','aaaa');
        $entity-&gt;translation('de')-&gt;set('Table2.field1','bbbb');
     }
  
     $this-&gt;Table1-&gt;save($entity);
  }
  </code></pre>
  
  <p>Here <code>Table1</code> i18n data is save but <code>Table2</code> i18n data is not save.</p>
  
  <p>Please help me on this concern.</p>
  
  <p>Thanks in advance. </p>