More() does not always return true when reading from a socket with data left

[Xaenalt]

For reading JSON over a socket, one useful method is the Decoder.More() method. This seems to behave unusually though with sockets. The following code will close a connection immediately because Decoder.More() is false whereas in the standard library it will be true after NewDecoder() is called. Additionally, setting the loop test condition to !jsonReader.More() will cause it to work for a few iterations, but it will subsequently become true. It seems to bounce back and forth over several other tries, like putting the test condition at the end of the loop with a break statement. Can the behavior of Decoder.More() be improved?

This code was tested with generated JSON of the form:

# for i in {0..1000000}; do echo "{\"count\": \"$i\"}" >> 1mjson; done
# nc localhost 1234 < 1mjson

package main

import (
	"fmt"
	"net"

	"github.com/json-iterator/go"
)

var json = jsoniter.ConfigCompatibleWithStandardLibrary

func main() {
	addr := ":1234"
	tcpAddr, _ := net.ResolveTCPAddr("tcp4", addr)
	listener, _ := net.ListenTCP("tcp", tcpAddr)

	for {
		conn, err := listener.Accept()
		if err != nil {
			continue
		}

		go func(conn net.Conn) {
			defer conn.Close()
			jsonReader := json.NewDecoder(conn)

			// Print whether or not there is more in the socket
			fmt.Printf("More(): %v", jsonReader.More())

			for jsonReader.More() {
				var jsonMsg map[string]interface{}
				jsonReader.Decode(&jsonMsg)
				fmt.Println(jsonMsg)

			}
			fmt.Println("Deferred close of connection executing")
		}(conn)

	}

}