From cea93784b1de46f23ade5b0b1e418d401ab2b719 Mon Sep 17 00:00:00 2001
From: Matthew Chen <matthew@signal.org>
Date: Fri, 3 Aug 2018 16:30:13 -0400
Subject: [PATCH] Avoid redundant content inset updates.

---
 .../ConversationView/ConversationViewController.m             | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Signal/src/ViewControllers/ConversationView/ConversationViewController.m b/Signal/src/ViewControllers/ConversationView/ConversationViewController.m
index 70e892763..70b908d55 100644
--- a/Signal/src/ViewControllers/ConversationView/ConversationViewController.m
+++ b/Signal/src/ViewControllers/ConversationView/ConversationViewController.m
@@ -4164,7 +4164,9 @@ typedef enum : NSUInteger {
     BOOL wasScrolledToBottom = [self isScrolledToBottom];
 
     void (^adjustInsets)(void) = ^(void) {
-        self.collectionView.contentInset = newInsets;
+        if (!UIEdgeInsetsEqualToEdgeInsets(self.collectionView.contentInset, newInsets)) {
+            self.collectionView.contentInset = newInsets;
+        }
         self.collectionView.scrollIndicatorInsets = newInsets;
 
         // Note there is a bug in iOS11.2 which where switching to the emoji keyboard