title: Symfony gedmo translatable not working
body: <p>This is my config.yml:</p>
  
  <pre><code>orm:
      auto_generate_proxy_classes: "%kernel.debug%"
      auto_mapping: true
      naming_strategy: doctrine.orm.naming_strategy.underscore
      mappings:
          gedmo_translatable:
              type: annotation
              prefix: Gedmo\Translatable\Entity
              dir: "%kernel.root_dir%/../vendor/gedmo/doctrine-extensions/lib/Gedmo/Translatable/Entity/MappedSuperclass"
              alias: GedmoTranslatable
              is_bundle: false
      filters:
          softdeleteable:
              class: Gedmo\SoftDeleteable\Filter\SoftDeleteableFilter
              enabled: true
          product_category_filter:
              class: AppBundle\Bundle\CoreBundle\Doctrine\Filter\CategoryFilter
              enabled: false
  </code></pre>
  
  <p>This is the annotation part of my entity that needs translation:</p>
  
  <pre><code>/**
   * @Gedmo\TranslationEntity(class="AppBundle\Bundle\CoreBundle\Entity\Translation\ProductCategory")
   * @ORM\Entity(repositoryClass="AppBundle\Bundle\CoreBundle\Entity\Repository\ProductCategoryRepository")
   * @ORM\Table(name="product_categories")
   * @Serializer\ExclusionPolicy("none")
   * @Gedmo\SoftDeleteable(fieldName="deletedAt", timeAware=false)
   */
  </code></pre>
  
  <p>This is the annotation part of the translation entity</p>
  
  <pre><code>/**
   * @ORM\Table(name="product_category_translations", indexes={
   *      @ORM\Index(name="product_category_translation_idx", columns={"locale", "object_class", "field", "foreign_key"})
   * })
   * @ORM\Entity(repositoryClass="Gedmo\Translatable\Entity\Repository\TranslationRepository")
   */
  </code></pre>
  
  <p>But when I do:</p>
  
  <pre><code>$category-&gt;getTitle()
  </code></pre>
  
  <p>I always the english (non-translated) value, even when my locale is different.</p>
  
  <p>Someone has an idea what I'm doing wrong?</p>
  
  <p>Or am I missing a crucial part of info/code in my question?</p>
  
  <p>PS: I'm using symfony 2.8</p>