From e9219743ffde95ac09d4f106bf375a9b52d77184 Mon Sep 17 00:00:00 2001
From: Matthew Chen <charlesmchen@gmail.com>
Date: Thu, 22 Jun 2017 18:14:21 -0400
Subject: [PATCH] Archive sessions on the 'session store' queue.

// FREEBIE
---
 src/Messages/OWSIdentityManager.m | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Messages/OWSIdentityManager.m b/src/Messages/OWSIdentityManager.m
index 4ddae17d6..9949e3cfb 100644
--- a/src/Messages/OWSIdentityManager.m
+++ b/src/Messages/OWSIdentityManager.m
@@ -198,7 +198,9 @@ NSString *const kNSNotificationName_IdentityStateDidChange = @"kNSNotificationNa
                                                      createdAt:[NSDate new]
                                              verificationState:verificationState] save];
 
-            [self.storageManager archiveAllSessionsForContact:recipientId];
+            dispatch_async([OWSDispatch sessionStoreQueue], ^{
+                [self.storageManager archiveAllSessionsForContact:recipientId];
+            });
 
             // Cancel any pending verification state sync messages for this recipient.
             [self clearSyncMessageForRecipientId:recipientId];