Writing a FirebaseFirestoreTypes.DocumentReference into Firestore

[liupier]

Hello RN Firebase team & users !

I am currently using Firestore solution and we are creating a new document inside a collection as the user click on a button.
Then, I need to update a document value in another path with the DocumentReference of the previous document created.
I manage to do everything but I can't figure out how to update the document value with the reference.
I did try to get the reference of the last query that creates the new document like so :
docRef = await signaturesDb().add(newSignature);
Then I update with a simple
await donationListingItemsDb(parentId, parentListingId) .doc(donationListingItemId) .update({receiverSignature: docRef);

But my app crashed with a malformed calls from JS: field sizes are different.
I am not sure what I am doing wrong but, I just wanted to know if this feature is supported because it doesn't mention writing DocumentReference in the documentation.

Thank you for your time

Pierre

[liupier]

Hello, got figure it out but still a mystery.
I was passing by a function parameter the reference, and then it would update the document. But when I move all the code on the screen it's working. Somewhat passing a reference by a parameter function broke it.