From 085a3ecf6c26130b25ff42dbcb66e0a1171fe992 Mon Sep 17 00:00:00 2001
From: Miguel Alatzar <migbot@users.noreply.github.com>
Date: Tue, 16 Jul 2019 06:07:59 -0700
Subject: [PATCH] [MM-17016] Ensure Flatlist is mounted prior to calling
 scrollToIndex (#2977)

* Ensure Flatlist is mounted prior to calling scrollToIndex

* Address review comment
---
 app/components/post_list/post_list.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/app/components/post_list/post_list.js b/app/components/post_list/post_list.js
index 262c0d373..b7bf7fee5 100644
--- a/app/components/post_list/post_list.js
+++ b/app/components/post_list/post_list.js
@@ -291,7 +291,8 @@ export default class PostList extends PureComponent {
             width > 0 &&
             height > 0 &&
             this.props.initialIndex > 0 &&
-            !this.hasDoneInitialScroll
+            !this.hasDoneInitialScroll &&
+            this.flatListRef?.current
         ) {
             requestAnimationFrame(() => {
                 this.flatListRef.current.scrollToIndex({