Getting aws error after modifying image: Aws::S3::Errors::XAmzContentSHA256Mismatch: The provided 'x-amz-content-sha256' header does not match what was computed.

[marr]

I have a repo that I would like to modify an image using minimagic. The aws sdk returns Aws::S3::Errors::XAmzContentSHA256Mismatch: The provided 'x-amz-content-sha256' header does not match what was computed. after I attempt to reassign the image after making a change to it. The example code is here https://github.com/marr/localpic2/blob/master/app/workers/image_filter.rb#L18 and relevant test https://github.com/marr/localpic2/blob/master/test/workers/image_filter_test.rb#L16

Any help would be appreciated