From 1582d1b143f9400f9ab3ef50c6b962dd239e57dd Mon Sep 17 00:00:00 2001
From: Riley Testut <riley@rileytestut.com>
Date: Sat, 16 May 2020 11:42:31 -0700
Subject: [PATCH] Fixes updating App IDs with no app groups

---
 .../FetchProvisioningProfilesOperation.swift         | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/AltStore/Operations/FetchProvisioningProfilesOperation.swift b/AltStore/Operations/FetchProvisioningProfilesOperation.swift
index 239faf2d..a7bdb49d 100644
--- a/AltStore/Operations/FetchProvisioningProfilesOperation.swift
+++ b/AltStore/Operations/FetchProvisioningProfilesOperation.swift
@@ -362,7 +362,17 @@ extension FetchProvisioningProfilesOperation
             entitlements[key] = value
         }
                 
-        guard let applicationGroups = entitlements[.appGroups] as? [String] else { return completionHandler(.success(appID)) }
+        let applicationGroups = entitlements[.appGroups] as? [String] ?? []
+        if applicationGroups.isEmpty
+        {
+            guard let isAppGroupsEnabled = appID.features[.appGroups] as? Bool, isAppGroupsEnabled else {
+                // No app groups, and we also haven't enabled the feature, so don't continue.
+                // For apps with no app groups but have had the feature enabled already
+                // we'll continue and assign the app ID to an empty array
+                // in case we need to explicitly remove them.
+                return completionHandler(.success(appID))
+            }
+        }
         
         // Dispatch onto global queue to prevent appGroupsLock deadlock.
         DispatchQueue.global().async {