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I've be confronted to an issue with column aggregation inheritance. There is my model :

A:
  actAs:
    I18n:
      fields: [name]
  columns:
    name: string(255)

Aa:
  inheritance:
    extends: A
    type: column_aggregation

Ab:
  inheritance:
    extends: A
    type: column_aggregation

When I get the 'name' field I18nable, Doctrine leaves in a terrible infinite loop, and PHP gives me this fatal error :

Fatal error: Allowed memory size of 16777216 bytes exhausted (tried to allocate 32 bytes) in /var/www/..../BaseA.php on line 15

This line is the following :

$this->setSubClasses(array('Aa' => array('type' => 'Aa'), 'Ab' => array('type' => 'Ab')));

When I get rid of the actAs I18n, all is going ok. Is there a Doctrine bug ?