Gate `Endpoint.start_listener()`s `getsockname()`-vs-`.addr`
reconciliation on a new per-addr-type `ClassVar[bool]`, set
`True` on both `TCPAddress` and `UDSAddress` so existing
behaviour is bit-for-bit unchanged.
That reconciliation exists ONLY to learn a kernel-assigned
port from a `port=0` tcp bind (its own comment says so). The
incoming `tipc` backend (gh #378) has no late-binding
analogue AND its `getsockname()` answers a `TIPC_ADDR_ID`
port-id rather than the name-seq it published — rebinding
from that would swap a dialable service name for an
un-dialable, un-reconstructable port id.
So opting out is semantically right rather than a hack.
(this patch was generated in some part by `claude-code` using `claude-opus-5` (`anthropic`))
Gud Boi
c0692f32b5