The resolved-identity match in canonical auto-register always preserved
the stored host, so the route-aware IP preference added to the agent in
022f170df could never take effect for an already-registered node: a
reinstall re-matched the node and kept the stale short-DNS host forever.
Preserve the stored host only when it is absent from the agent's ordered
candidate list (an admin-managed endpoint the agent cannot see); when the
agent itself lists the stored host as a lower-priority candidate, adopt
the newly selected host. Identity continuity (same node record, same
token) is unchanged.
Dead-code sweep. Functions flagged unreachable by golang.org/x/tools/cmd/deadcode
and confirmed unused across pulse, pulse-enterprise, pulse-pro and pulse-mobile by
adversarial cross-repo verification. Cross-module reachability was checked
explicitly (only pkg/ exported symbols are importable by other modules; internal/
packages and _test.go files are not). go build, go vet and test-compile all pass.
rcourtman