Fixes issue where "Use Security Key" option should not be present (#820)

Author: Ecarrion

WordPressAuthenticator/Signin/LoginViewController.swift

@@ -216,6 +216,10 @@ open class LoginViewController: NUXViewController, LoginFacadeDelegate {
             return
         }
 
+        // Make sure we don't provide any old nonce information when we are required to present only the multi-factor code option.
+        loginFields.nonceInfo = nil
+        loginFields.nonceUserID = 0
+
         presentUnified2FA()
     }
 

WordPressAuthenticator/Unified Auth/View Related/2FA/TwoFAViewController.swift

@@ -491,7 +491,7 @@ private extension TwoFAViewController {
         rows.append(.spacer(4))
         rows.append(.sendCode)
 
-        if #available(iOS 16, *), WordPressAuthenticator.shared.configuration.enablePasskeys, loginFields.nonceInfo?.nonceWebauthn != nil {
+        if #available(iOS 16, *), WordPressAuthenticator.shared.configuration.enablePasskeys, loginFields.nonceInfo?.nonceWebauthn.isEmpty == false {
             rows.append(.spacer(4))
             rows.append(.enterSecurityKey)
         }