Trying to create a certificate on Azure KeyVault, but cannot shake this error

azure:keyvault:Certificate (test):
    error: Plan apply failed: grpc: error while marshaling: proto: field "google.protobuf.Value.Kind" contains invalid UTF-8

const testCertificate = new azure.keyvault.Certificate("test", {
  certificatePolicy: {
    issuerParameters: {
      name: "Self",
    },
    keyProperties: {
      exportable: true,
      keySize: 2048,
      keyType: "RSA",
      reuseKey: true,
    },
    lifetimeActions: [{
      action: {
        actionType: "AutoRenew",
      },
      trigger: {
        daysBeforeExpiry: 30,
      },
    }],
    secretProperties: {
      contentType: "application/x-pkcs12",
    },
    x509CertificateProperties: {
      // Server Authentication = 1.3.6.1.5.5.7.3.1
      // Client Authentication = 1.3.6.1.5.5.7.3.2
      extendedKeyUsages: ["1.3.6.1.5.5.7.3.1"],
      keyUsages: [
        "cRLSign",
        "dataEncipherment",
        "digitalSignature",
        "keyAgreement",
        "keyCertSign",
        "keyEncipherment",
      ],
      subject: `CN=*.${domainName}`,
      subjectAlternativeNames: {
        dnsNames: [
          // "<http://internal.contoso.com|internal.contoso.com>",
          // "domain.hello.world",
        ],
      },
      validityInMonths: 12,
    },
  },
  keyVaultId: keyVault.id,
  name: "generated-cert",
})

I'm afraid that's https://github.com/pulumi/pulumi-azure/issues/241

aaah that sucks