PacketSource ReClose Error

I want to create a temporary source and close it after use. The handle needs to be used for a longer period of time, but after I finally close the handle, it results in the source channel being closed multiple times.
```
func TestSourceClose(t *testing.T) {
h, err := pcap.OpenLive("\\Device\\NPF_Loopback", 65536, false, time.Second*3)
assert.Equal(t, nil, err)
source := gopacket.NewPacketSource(h, nil)
go func() {
for _ = range source.Packets() {
continue
}
println("done")

}()
close(source.Packets())
source2 := gopacket.NewPacketSource(h, nil)
go func() {
for _ = range source2.Packets() {
continue
}
println("done2")
}()
time.Sleep(1 * time.Second)
h.Close()

}
```
```
panic: send on closed channel

goroutine 18 [running]:
github.com/google/gopacket.(*PacketSource).packetsToChannel(0xc0000215c0)
D:/code/github.com/gopacket/packet.go:820 +0xb3
created by github.com/google/gopacket.(*PacketSource).Packets in goroutine 7
D:/code/github.com/gopacket/packet.go:861 +0x98
panic: send on closed channel
panic: close of closed channel

goroutine 8 [running]:
github.com/google/gopacket.(*PacketSource).packetsToChannel(0xc0000215c0)
D:/code/github.com/gopacket/packet.go:820 +0xb3
created by github.com/google/gopacket.(*PacketSource).Packets in goroutine 6
D:/code/github.com/gopacket/packet.go:861 +0x98
```