```
It creates a node and adds 2 outbound block-relay-only connections and 5 inbound connections.
When the node is down, anchors.dat should contain the 2 addresses from the outbound block-relay-only connections.
```
Backport of [[https://github.com/bitcoin/bitcoin/pull/21338 | [[https://github.com/bitcoin/bitcoin/pull/21338 | core#21338]]]].
Ref T1696.