x-amz-metadata-directive: REPLACE used for overwriting the metadata specified.
i.e. you must set x--amz-meta-src: dst on the second request, otherwise you cannot "REPLACE" the value.
x-amz-metadata- directive: REPLACE used for overwriting the metadata specified.
i.e. you must set x--amz-meta-src: dst on the second request, otherwise you cannot "REPLACE" the value.