message: test: fix FakeStream::encodeData to copy data before posting
diff: @@ -64,8 +64,9 @@ void FakeStream::encodeData(uint64_t size, bool end_stream) {
  }
  void FakeStream::encodeData(Buffer::Instance& data, bool end_stream) {
  - parent_.connection().dispatcher().post([this, &data, end_stream]()
  - -> void { encoder_.encodeData(data, end_stream); });
  + std::shared_ptr<Buffer::Instance> data_copy(new Buffer::OwnedImpl(data));
  + parent_.connection().dispatcher().post(
  + [this, data_copy, end_stream]() -> void { encoder_.encodeData(*data_copy, end_stream); });
  }
  void FakeStream::encodeTrailers(const Http::HeaderMapImpl& trailers) {
  