S3A: ITestCustomSigner failing against S3Express Buckets

[ERROR] testCustomSignerAndInitializer[simple-delete](org.apache.hadoop.fs.s3a.auth.ITestCustomSigner)  Time elapsed: 6.12 s  <<< ERROR!
org.apache.hadoop.fs.s3a.AWSBadRequestException: PUT 0-byte object  on fork-0006/test/testCustomSignerAndInitializer[simple-delete]/customsignerpath1: software.amazon.awssdk.services.s3.model.S3Exception: x-amz-sdk-checksum-algorithm specified, but no corresponding x-amz-checksum-* or x-amz-trailer headers were found. (Service: S3, Status Code: 400, Request ID: 0033eada6b00018d21962f1b05094a80435cca52, Extended Request ID: kZJZG05LGCBu7lsNKNf):InvalidRequest: x-amz-sdk-checksum-algorithm specified, but no corresponding x-amz-checksum-* or x-amz-trailer headers were found. (Service: S3, Status Code: 400, Request ID: 0033eada6b00018d21962f1b05094a80435cca52, Extended Request ID: kZJZG05LGCBu7lsNKNf)
        at org.apache.hadoop.fs.s3a.S3AUtils.translateException(S3AUtils.java:259)
...
Caused by: software.amazon.awssdk.services.s3.model.S3Exception: x-amz-sdk-checksum-algorithm specified, but no corresponding x-amz-checksum-* or x-amz-trailer headers were found. (Service: S3, Status Code: 400, Request ID: 0033eada6b00018d21962f1b05094a80435cca52, Extended Request ID: kZJZG05LGCBu7lsNKNf)
        at software.amazon.awssdk.protocols.xml.internal.unmarshall.AwsXmlPredicatedResponseHandler.handleErrorResponse(AwsXmlPredicatedResponseHandler.java:156)
        at software.amazon.awssdk.protocols.xml.internal.unmarshall.AwsXmlPredicatedResponseHandler.handleResponse(AwsXmlPredicatedResponseHandler.java:108)