message: no longer allow null for user.acceptedTermsOfService
diff: @@ -39,7 +39,7 @@ export default class User extends OsfModel.extend(Validations) {
  @attr('boolean', { defaultValue: false }) canViewReviews!: boolean;
  - @attr('boolean', { allowNull: true }) acceptedTermsOfService?: boolean;
  + @attr('boolean') acceptedTermsOfService?: boolean;
  @hasMany('node') nodes!: DS.PromiseManyArray<Node>;
  @hasMany('registration') registrations!: DS.PromiseManyArray<Registration>;
  