Select the published reco-backed test server with a build tag while
preserving the default implementation and existing caller API. Pin the
public module with its proxy-verified checksums; no workspace is needed.
Accept incremental peer messages in the TSP test. Exercise legacy map
semantics with the default server and version-floor rejection with reco,
including current-version streaming, without manual test skips.
Document GOFLAGS usage so child Go builds inherit the experiment tag.
Updates tailscale/corp#49097
Change-Id: I9b3e086c4c6a9a57a076e76b883422875c843f20
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Brad Fitzpatrick
bcc7e46f42