GODRIVER-3307 clone returned byte slice in MarshalValue (#1913) [release/2.0]#1921

matthewdale merged 1 commit intorelease/2.0mongodb/mongo-go-driver:release/2.0from

cherry-pick-release/2.0-0b2f755eeff5751e5ee15e1dc5d729111eb0489amongodb/mongo-go-driver:cherry-pick-release/2.0-0b2f755eeff5751e5ee15e1dc5d729111eb0489aCopy head branch name to clipboard