fix(collection): ensure unique indexes are marked before upsert operations

ts/classes.collection.ts

@@ -460,6 +460,7 @@ export class SmartdataCollection<T> {
   ): Promise<any> {
     await this.init();
     await this.checkDoc(dbDocArg);
+    await this.markUniqueIndexes(dbDocArg.uniqueIndexes);
     const identifiableObject = await dbDocArg.createIdentifiableObject();
     const saveableObject = await dbDocArg.createSavableObject() as any;
     const updateableObject: any = {};