Hybrid network of kagome-substrate peers lags with finalization

[kamilsa]

WTP:

cd examples/network_x4

Terminal 1. Launch first kagome validator:
kagome --chain testchain4v.json --validator --base-path alice --name Alice -p 10001 --rpc-port 11001 --ws-port 12001 --prometheus-port 13001

Terminal 2. Launch second kagome validator:
kagome --chain testchain4v.json --validator --base-path bob --name Bob -p 10002 --rpc-port 11002 --ws-port 12002 --prometheus-port 13002

Terminal 3. Launch third substrate-based validator:
polkadot --chain testchain4v.json --base-path=charlie-sub --charlie --port=10003 --rpc-port=11003 --ws-port=12003 --prometheus-port=13003 --node-key=f69b297baa6a2a1d2652ee0f72bf07f45fc92c0facc07250679dcc164c53e9a5

Terminal 4. Launch fourth substrate-based validator:
polkadot --chain testchain4v.json --base-path=dave-sub --dave --port=10004 --rpc-port=11004 --ws-port=12004 --prometheus-port=13004 --node-key=e0d0ba382d0c82b8e1bffc23e316bb9dac07a63408b83480402aee1499515c72

After a while we can notice in substrate-based validators logs:

2022-06-02 10:25:04 Low connectivity - authority lookup failed for too many validators. connected=1 target=3
2022-06-02 10:25:07 💤 Idle (3 peers), best: #275 (0x7ddd…102d), finalized #214 (0xfed5…d777), ⬇ 0.7kiB/s ⬆ 0.5kiB/s

[kamilsa]

Few issues were identified as part of this one:

• Fix false-posititive impoliteness #1223
• Avoid justification rewrite  #1233
• Do not participate in finalization to avoid possible equivocation #1235