Fix #991

src/Application/Form/Type/LinkableType.php

src/Domain/Registry/Model/Contractor.php

src/Domain/Registry/Model/Mesurement.php

src/Domain/Registry/Model/Proof.php

src/Domain/Registry/Model/Request.php

src/Domain/Registry/Model/Tool.php

src/Domain/Registry/Model/Treatment.php

src/Domain/Registry/Model/Violation.php