Hangs on addition of a single parameter

[mikehadlow]

Simply adding a single parameter oneTimeToken to this Api.gql file causes elm-gql to hang:

mutation OrganizationCreateFromEmailVerification($input: OrganizationCreateFromEmailInput!) {
  organizationCreateFromEmailVerification(input: $input) {
    __typename
    ... on OrganizationCreateFromEmailSuccess {
      __typename
+     oneTimeToken
    }
    ... on OrganizationCreateErrorLocked {
      __typename
    }
    ... on OrganizationCreateErrorDomainIsLikelyPersonal {
      __typename
    }
    ... on OrganizationExistsSSORequired {
      __typename
      authenticationURL
    }
    ... on OrganizationCreateErrorUserAlreadyExists {
      __typename
    }
    ... on PasswordValidationError {
      __typename
    }
    ... on ValidationError {
      __typename
    }
  }
}