cert_validity_period different from g1 is inconsistent

in "certByIssuer" field of genesis, we can see something like:

            "11937": {
              "6222": 7854073,
              "7030": 7221464,
              "7159": 6596517,
              "7946": 6054186,
              "8343": 5721823,
              "10662": 6770773,
              "10675": 5726937,
              "10739": 5722153,
              "11106": 5723004,
              "11194": 5721471,
              "12456": 6745296,
              "14152": 10517942

this means that the cert 11937 → 14152 is set to expire at block 10517942 = 10,517,942 = 63107652 s ≃ 2 years but the genesis parameters in yaml says:

  # Validity duration of a certification, 2102400 blocks = 146 days.
  cert_validity_period: 2102400

So we have old certs form g1 with the 2 years delay but the new certs in gdev with the 6 month delay.

This is not really an issue but is good to notice.