Fix relatedcolumns return type

packages/builder/src/components/design/settings/controls/GridColumnConfiguration/GridColumnConfiguration.svelte

@@ -26,12 +26,14 @@
   const getSchema = (asset, datasource) => {
     const schema = getSchemaForDatasource(asset, datasource).schema
 
-    // Don't show ID and rev in tables
-    if (schema) {
-      delete schema._id
-      delete schema._rev
+    if (!schema) {
+      return
     }
 
+    // Don't show ID and rev in tables
+    delete schema._id
+    delete schema._rev
+
     const result = enrichSchemaWithRelColumns(schema)
     return result
   }

packages/frontend-core/src/utils/relatedColumns.ts

@@ -46,10 +46,7 @@ const columnTypeManyParser = {
 
 export function enrichSchemaWithRelColumns(
   schema: Record<string, UIFieldSchema>
-): Record<string, UIFieldSchema> | undefined {
-  if (!schema) {
-    return
-  }
+): Record<string, UIFieldSchema> {
   const result = Object.keys(schema).reduce<Record<string, UIFieldSchema>>(
     (result, fieldName) => {
       const field = schema[fieldName]