tarjei/symfony-docs — comment on commit e8c75b589c3ddfdb9654c08879bbd4d20e91f13e
File: cookbook/form/data_transformers.rst line 111
By henrikbjorn:

the coding style is wrog

$builder
->add("name", "text")
->add("issue", "text")
;

$builder->get("issue")->appendClientTransformer($transformer);

would be better this