Y struct variables are modified even before writing to a channel?

Question

for count < 5 {
				responseFn := func(m *M.Message) {
					Convey("Testing Response received on Publish message", t, func() {
						So(m.Status, ShouldEqual, M.OK)
						So(m.Event, ShouldEqual, "MSG_ACK")
						slog.Printf("Response: %v", m)
					})
				}

				args[0] = h.Id.String()    // HubId
				args[1] = h.GetIPAddress() // host hostname
				for i := 0; i < hub.NO_OF_COLLECTOR; i++ {
					args[i+2] = collectorPorts[i] // host listening port
				}

				m.Args = args
				m.Msg = msg[count]
				m.Id = M.Uid(count)
				env := transport.Envelope{
					Data: m,
					Tm:   time.Now(),
				}
				req := transport.DynamicDealerMsg{
					Env:        env,
					ResponseFn: responseFn,
				}
				h2dd <- req
				slog.Println("count", count, req.Env.Data)
				count++
			}
			time.Sleep(time.Second * 5)

		}

Here I am writing 5 requests to channel.At the end channel has 5 requests but not what I sent.All requests are replaced with last request I sent.Why it is happening I am unable to figure it out.Any suggestions..

Y struct variables are modified even before writing to a channel?

Responses