fixed empty validation

src/space/services/space-product-allocation.service.ts

@@ -190,6 +190,7 @@ export class SpaceProductAllocationService {
     queryRunner: QueryRunner,
     modifySubspace?: ModifySubspaceDto[],
   ): Promise<void> {
+    if (!dtos || dtos.length === 0) return;
     try {
       await Promise.all([
         this.processAddActions(