The FIRUser displayName appears empty when using 'Sign in with Apple'

[mark-osypenko]

• Objective C or Swift: Swift
• iOS version: 17.0.2
• Firebase SDK version: 10.15.0
• FirebaseUI version: 13.1.0

The library does not utilize the complete name provided by Apple. Instead, it constructs a FIROAuthCredential using only the token and rawNonce.

Steps to reproduce:

1. Sign in with Apple

Observed Results:

FIRUser displayName is empty

Relevant Code:

need to replace in FUIOAuth.m line 371

FIROAuthCredential *credential = [FIROAuthProvider credentialWithProviderID:@"apple.com" IDToken:idToken rawNonce:rawNonce];

with

FIROAuthCredential *credential = [FIROAuthProvider appleCredentialWithIDToken:idToken rawNonce:rawNonce, fullName: appleIDCredential.fullName];