fix(classes.doc.ts): Ensure collection initialization before creating a cursor in getCursorExtended

ts/classes.doc.ts

@@ -255,6 +255,7 @@ export class SmartDataDbDoc<T extends TImplements, TImplements, TManager extends
     modifierFunction = (cursorArg: plugins.mongodb.FindCursor<plugins.mongodb.WithId<plugins.mongodb.BSON.Document>>) => cursorArg,
   ): Promise<SmartdataDbCursor<T>> {
     const collection: SmartdataCollection<T> = (this as any).collection;
+    await collection.init();
     let cursor: plugins.mongodb.FindCursor<any> = collection.mongoDbCollection.find(
       convertFilterForMongoDb(filterArg),
     );