This PR fixes a logical error in data checksum validation. Without this fix, the function returns None instead of True when no checksum is provided, which could cause silent failures in data integrity checks.

[BryanBradfo]

Purpose

Fixes a bug where checksum_data returns None instead of True when data_checksum is None.

Changes

• Added return True in the else block of checksum_data to ensure correct validation.

Testing

• Validated locally by setting data_checksum = None and confirming checksum_data returns True.
• Ensured existing checksum validation logic remains unaffected.