src: fix crash on OnStreamRead on Windows
On Windows it's perfectly possible that the uv_tcp_t read_cb is called with an error and a null uv_buf_t if it corresponds to a UV_HANDLE_ZERO_READ read. Handle this case without crashing.
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
On Windows it's perfectly possible that the uv_tcp_t read_cb is called with an error and a null uv_buf_t if it corresponds to a UV_HANDLE_ZERO_READ read. Handle this case without crashing.