From fb98769002c7e61cdfd1f3197e6b83129faeda3c Mon Sep 17 00:00:00 2001
From: Diego Sanchez <diego.sanchez@corp.badoo.com>
Date: Sun, 17 Apr 2016 23:38:18 +0100
Subject: [PATCH] Fixes assert being hit when entering a conversation on iOS 8

---
 .../Collaborators/ChatCollectionViewLayout.swift             | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/Chatto/Source/ChatController/Collaborators/ChatCollectionViewLayout.swift b/Chatto/Source/ChatController/Collaborators/ChatCollectionViewLayout.swift
index 2504950..1c52b67 100644
--- a/Chatto/Source/ChatController/Collaborators/ChatCollectionViewLayout.swift
+++ b/Chatto/Source/ChatController/Collaborators/ChatCollectionViewLayout.swift
@@ -93,10 +93,7 @@ public class ChatCollectionViewLayout: UICollectionViewLayout {
     }
 
     public override func collectionViewContentSize() -> CGSize {
-        if self.layoutNeedsUpdate {
-            self.prepareLayout()
-        }
-        return self.layoutModel.contentSize
+        return self.layoutModel?.contentSize ?? .zero
     }
 
     override public func layoutAttributesForElementsInRect(rect: CGRect) -> [UICollectionViewLayoutAttributes]? {