Unexpected correct validation of non correct date-time string?

[gcornacchia]

if I try to validate a value against a field with type string and format date-time.

input: 2024-10-04T10:22:45+0200

expected behavior: validation error, missing “:” between 02 and 00 in offset (as stated in RFC)

current behavior: no validation error is thrown

‌

Do you explain why? Am I missing something in specifications?