Unique fields - fixes (#13848)

- Enable update to unique for composite field with defaultValue
different from default defaultValue on subfield not included in unique
constraint
- Enable update to unique for standard field + Disable update to
non-unique for standard index
- Fix typo

Fixes https://github.com/twentyhq/core-team-issues/issues/1360

packages/twenty-server/src/engine/metadata-modules/object-metadata/object-metadata.service.ts

@@ -560,7 +560,11 @@ export class ObjectMetadataService extends TypeOrmQueryService<ObjectMetadataEnt
     options: FindOneOptions<ObjectMetadataEntity>,
   ): Promise<ObjectMetadataEntity | null> {
     return this.objectMetadataRepository.findOne({
-      relations: ['fields'],
+      relations: [
+        'fields',
+        'indexMetadatas',
+        'indexMetadatas.indexFieldMetadatas',
+      ],
       ...options,
       where: {
         ...options.where,