From 683307b9af1aba7d04699da422c23ce249c7c6f3 Mon Sep 17 00:00:00 2001
From: Riley Testut <riley@rileytestut.com>
Date: Mon, 4 Oct 2021 15:51:58 -0700
Subject: [PATCH] Prefers revoking existing AltStore certificate (if it exists)

---
 AltStore/Operations/AuthenticationOperation.swift | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/AltStore/Operations/AuthenticationOperation.swift b/AltStore/Operations/AuthenticationOperation.swift
index d0055950..6c717ea9 100644
--- a/AltStore/Operations/AuthenticationOperation.swift
+++ b/AltStore/Operations/AuthenticationOperation.swift
@@ -507,7 +507,7 @@ private extension AuthenticationOperation
         
         func replaceCertificate(from certificates: [ALTCertificate])
         {
-            guard let certificate = certificates.first else { return completionHandler(.failure(AuthenticationError.noCertificate)) }
+            guard let certificate = certificates.first(where: { $0.machineName?.starts(with: "AltStore") == true }) ?? certificates.first else { return completionHandler(.failure(AuthenticationError.noCertificate)) }
             
             ALTAppleAPI.shared.revoke(certificate, for: team, session: session) { (success, error) in
                 if let error = error, !success