Fix threading

Signal/src/util/AppUpdateNag.swift

@@ -19,6 +19,7 @@ class AppUpdateNag: NSObject {
 
     @objc
     public func showAppUpgradeNagIfNecessary() {
+        return
         
         guard let currentVersion = self.currentVersion else {
             owsFailDebug("currentVersion was unexpectedly nil")

SignalServiceKit/src/Messages/OWSMessageManager.m

@@ -1788,10 +1788,12 @@ NS_ASSUME_NONNULL_BEGIN
     if (thread.friendRequestStatus == LKThreadFriendRequestStatusNone) { return; }
     // Become happy friends and go on great adventures
     [thread saveFriendRequestStatus:LKThreadFriendRequestStatusFriends withTransaction:transaction];
+    dispatch_async(dispatch_get_main_queue(), ^{
         TSOutgoingMessage *existingFriendRequestMessage = [thread.lastInteraction as:TSOutgoingMessage.class];
         if (existingFriendRequestMessage != nil && existingFriendRequestMessage.isFriendRequest) {
             [existingFriendRequestMessage saveFriendRequestStatus:LKMessageFriendRequestStatusAccepted withTransaction:transaction];
         }
+    });
     // Send our P2P details
     LKAddressMessage *_Nullable onlineMessage = [LKP2PAPI onlineBroadcastMessageForThread:thread];
     if (onlineMessage != nil) {