message: Allowing return type of _createEntity to be an Array
diff: @@ -108,7 +108,7 @@ class OAuth2Verifier {
  .then(this._normalizeResult)
  .then(entity => entity ? this._updateEntity(entity, data) : this._createEntity(data))
  .then(entity => {
  - const id = entity[this.service.id];
  + const id = Array.isArray(entity) ? entity[0][this.service.id] : entity[this.service.id];
  const payload = { [`${this.options.entity}Id`]: id };
  done(null, entity, payload);
  })
  