v0.4.0 is connecting with v0.3.11

[nonsense]

Even though we bumped up protocol version for bzz, nodes still connect, for example, when running Swarm v0.4.0 (bzz/9 and hive/8) we still connect to peers that have (bzz/8 and hive/8).

}, {
    caps: ["bzz/8", "hive/8"],
    enode: "enode://4c113504601930bf2000c29bcd98d1716b6167749f58bad703bae338332fe93cc9d9204f08afb44100dc7bea479205f5d162df579f9a8f76f8b402d339709023@3.122.203.99:30301",
    id: "1401ec8b40b23cb2bbbff4e8e9cdbf0e7f0288f453b077dad7d6cdab08ee86ed",
    name: "swarm/v0.3.11/linux-amd64/go1.11.5",
    network: {
      inbound: false,
      localAddress: "192.168.225.158:44480",
      remoteAddress: "3.122.203.99:30301",
      static: true,
      trusted: false
    },
    protocols: {
      hive: "handshake"
    }
}, {

AFAIK bzz/8 handshare (which checks bzz network id) should be performed before running the Hive protocol, which doesn't seem to be the case here.

The peer above is running bzz network id 3, whereas v0.4.0 is running bzz network id 4.