symfony/symfony — pull request #5355 by Tobion (2012-08-26 16:20:00+00:00)
Title: [Form] raise OutOfBoundsException instead of InvalidArgumentException in Form::get

BC break: yes

Raise OutOfBoundsException instead of InvalidArgumentException in Form::get for inexistent form childs to be in line with PropertyPath, which also uses OutOfBoundsException for invalid indexes.