title: updatng schema after changes in entity - Symfony2 / Doctrine2
body: <p>I just uploaded a changed entity to my server and wanted to update my schema via <code>php app/console doctrine:shema:update --dump-sql</code>. (I need to change an smallint into an longtext (simple_array type).) This worked fine on my test server, but on my productive server, after uploading the changed entity, symfony tells me that the schema doesnt need to be updated.
  What did I forget?</p>