market_mad/s3/import reads READx_LENGTH instead of READ_LENGTH from marketplace template #8194

Description
In src/market_mad/remotes/s3/import (line 79), the S3 marketplace chunk size attribute is read from XPath MARKETPLACE/TEMPLATE/READx_LENGTH instead of MARKETPLACE/TEMPLATE/READ_LENGTH:

read_length       = xpath(xml, 'MARKETPLACE/TEMPLATE/READx_LENGTH')

Meanwhile, FireEdge (src/fireedge/src/modules/resources/Marketplace/Forms/CreateForm/Steps/Configuration/fieldsS3.js) and the S3 marketplace documentation define the attribute as READ_LENGTH. As a result, a configured READ_LENGTH in the marketplace template is ignored during import and read_length always falls back to DEFAULT_READ_LENGTH (32 MB).

To Reproduce

1. Create an S3 Marketplace with READ_LENGTH = "64" in its template.
2. Import an image into the S3 Marketplace (src/market_mad/remotes/s3/import).
3. Observe that xpath(xml, 'MARKETPLACE/TEMPLATE/READx_LENGTH') returns nil and import uses DEFAULT_READ_LENGTH (32 MB).

Expected behavior
src/market_mad/remotes/s3/import should read MARKETPLACE/TEMPLATE/READ_LENGTH (with a fallback to MARKETPLACE/TEMPLATE/READx_LENGTH for backward compatibility).

Details

• Affected Component: S3 Marketplace driver (src/market_mad/remotes/s3/import)
• Version: master and 7.0.1

Progress Status

• Code committed
• Testing - QA
• Documentation (Release notes - resolved issues, compatibility, known issues)