message: hub/schema: Use `realFields` in `withOnlyRealFields()`
diff: @@ -69,7 +69,7 @@ class Schema {
  continue;
  }
  for (let fieldName of Object.keys(doc[section])) {
  - if (this.computedFields.has(fieldName)) {
  + if (!this.realFields.has(fieldName)) {
  if (activeDoc === doc) {
  activeDoc = Object.assign({}, doc);
  }
  