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[Validator] Add note to IBAN validator documentation about whitespace handling #21049

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Jun 5, 2025
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[Validator] Add note to IBAN validator documentation about whitespace handling #21049

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8 changes: 8 additions & 0 deletions reference/constraints/Iban.rst
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Expand Up @@ -85,6 +85,14 @@ will contain an International Bank Account Number.

.. include:: /reference/constraints/_empty-values-are-valid.rst.inc

.. note::

The IBAN validator accepts various human-readable formats, including different
whitespace types (e.g., spaces, non-breaking spaces). This flexibility may
cause issues when storing IBANs or integrating with APIs expecting a strict
format. Consider normalizing IBANs (e.g., removing whitespace) before storage
or processing to ensure compatibility.

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