[Serializer] DateTimeNormalizer handling of null and empty values (returning it instead of new object)#25287

fabpot merged 1 commit intosymfony:3.3symfony/symfony:3.3from

Simperfit:bugfix/return-null-when-passing-null-to-date-time-normalizerSimperfit/symfony:bugfix/return-null-when-passing-null-to-date-time-normalizerCopy head branch name to clipboard