fix: adjust model to remove references from things without references

Fixes #69

src/core/things/DateSeries.ts

@@ -29,7 +29,8 @@ import {SCSportCourseWithoutReferences} from './SportCourse';
 /**
  * Price groups for sport courses
  */
-export interface SCSportCoursePriceGroup extends SCAcademicPriceGroup {
+export interface SCSportCoursePriceGroup
+  extends SCAcademicPriceGroup {
   /**
    * Price for alumnis
    */
@@ -39,7 +40,8 @@ export interface SCSportCoursePriceGroup extends SCAcademicPriceGroup {
 /**
  * A date without references
  */
-export interface SCDateSeriesWithoutReferences extends SCThingThatCanBeOfferedWithoutReferences {
+export interface SCDateSeriesWithoutReferences
+  extends SCThingThatCanBeOfferedWithoutReferences {
   /**
    * Dates of the date series that are initially planned to be held
    */
@@ -76,9 +78,10 @@ export interface SCDateSeriesWithoutReferences extends SCThingThatCanBeOfferedWi
  *
  * @validatable
  */
-export interface SCDateSeries extends SCDateSeriesWithoutReferences,
-  SCThingInPlace,
-  SCThingThatCanBeOffered<SCSportCoursePriceGroup> {
+export interface SCDateSeries
+  extends SCDateSeriesWithoutReferences,
+    SCThingInPlace,
+    SCThingThatCanBeOffered<SCSportCoursePriceGroup> {
   /**
    * Event to which the date series belongs
    */
@@ -104,7 +107,9 @@ export interface SCDateSeries extends SCDateSeriesWithoutReferences,
 /**
  * Meta information about a date series
  */
-export class SCDateSeriesMeta extends SCThingMeta implements SCMetaTranslations<SCDateSeries> {
+export class SCDateSeriesMeta
+  extends SCThingMeta
+  implements SCMetaTranslations<SCDateSeries> {
   /**
    * Translations of fields
    */