merging does not work on this level, because handler returns `Record of content_type * Cstruct.t, which is passed to encrypt_records.
merging does not work on this level, because handler returns
`Record of content_type * Cstruct.t, which is passed to encrypt_records.

We should redo merging of handshake messages in the appropriate handler functions.

mirleft/ocaml-tls,cfcs/ocaml-tls