api: fix request body re-sequencing bug (#1996)
api: fix request body re-sequencing bug (#1996)

* api: don't mutate request body on POST requests

* fix test suite

* Improve solution

Co-authored-by: Asim Aslam <7f7319d555bb84157ce92eea63d39ca4c7bfcbe5@aslam.me>
micro/go-micro