net/http: TestServerConnState failures missing second active state after TLS handshake errors

[bcmills]

2022/03/30 05:35:07 http: TLS handshake error from 127.0.0.1:14164: EOF
2022/03/30 05:35:07 http: TLS handshake error from 127.0.0.1:33976: EOF
2022/03/30 05:35:07 http: TLS handshake error from 127.0.0.1:18644: EOF
--- FAIL: TestServerConnState (0.17s)
    serve_test.go:4199: unexpected conn in state new
    serve_test.go:4199: unexpected conn in state active
    serve_test.go:4199: unexpected conn in state closed
    serve_test.go:4241: Request(s) produced unexpected state sequence.
        Got:  [new active idle closed]
        Want: [new active idle active closed]
FAIL
FAIL	net/http	42.044s

greplogs --dashboard -md -l -e 'FAIL: TestServerConnState .*(\n .*)*Got:\s+\[new active idle closed\]'

2022-03-29T17:21:21-f71daa6/openbsd-arm64-jsing
2022-01-19T20:54:49-1efc581/plan9-arm
2021-11-17T19:50:58-88474d4/openbsd-386-68

(CC @neild)