amazonwebservices/aws-sdk-for-ruby — pull request #66 by moorecp (2012-08-10 20:20:14+00:00)
Title: Allow for setting Content-Disposition as part of copy operations

Currently, you can only set Content-Disposition as part of a write_to operation. This patch allows it to be set as part of a copy or move operation.

Credit due to: http://stackoverflow.com/questions/11138336/how-to-add-change-content-disposition-of-existing-s4-object