[BUG] Checksum not synced

[antareson]

Describe the bug
The checksum meta data is not synced from the source, resulting in "Skipping checksum validation message by boto3.s3.download_file()"

To Reproduce

1. Get s3 file synced (with Include Object Metadata = Yes)
2. On S3 web console, verify the source has CRC32 checksum but target Checksum = "-"
3. Use boto3 python pacakge to download the file and get warning

Expected behavior
Checksum data is synced with the S3 object

Please complete the following information about the solution:
(SO8002) - Data Transfer Hub - S3 Plugin - Template version v2.6.6
(SO8001) - Data Transfer Hub with aws-solutions-constructs: This template deploys an one-stop toolset for transferring data from different sources into AWS. Template version v2.6.6

• [us-east-1] Region: [e.g. us-east-1]
• [No] Was the solution modified from the version published on this repository?
• [Yes] Have you checked your service quotas for the sevices this solution uses?
• [No] Were there any errors in the CloudWatch Logs?

Screenshots
Job def

Target Checksum

[bassemwanis]

Thank you @antareson for bringing this to our attention. We will investigate the issue. In the meantime, here is the logic that handles the S3 object upload https://github.com/aws-solutions/data-transfer-hub-cli/blob/d6fb4e09f8a0cac12d4dc85d8e1eeb2a4953ffb8/dth/client.go#L514. MD5 hashing validation is used, and Include Object Metadata? setting does not transfer the checksum value.