From 15ac397b63474e959a09eab53c834b693f3c14c5 Mon Sep 17 00:00:00 2001
From: Rae Che <RaeChe@agoa.org.uk>
Date: Sun, 27 May 2018 11:55:06 +0100
Subject: [PATCH] Fix inconsistent React state update.

Flagged by lgtm.com (as js/react/inconsistent-state-update).
---
 client/homebrew/brewRenderer/brewRenderer.jsx | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/client/homebrew/brewRenderer/brewRenderer.jsx b/client/homebrew/brewRenderer/brewRenderer.jsx
index e2c87ff8a..07a6bb119 100644
--- a/client/homebrew/brewRenderer/brewRenderer.jsx
+++ b/client/homebrew/brewRenderer/brewRenderer.jsx
@@ -62,9 +62,9 @@ const BrewRenderer = createClass({
 	},
 
 	handleScroll : function(e){
-		this.setState({
-			viewablePageNumber : Math.floor(e.target.scrollTop / e.target.scrollHeight * this.state.pages.length)
-		});
+		this.setState((prevState)=>({
+			viewablePageNumber : Math.floor(e.target.scrollTop / e.target.scrollHeight * prevState.pages.length)
+		}));
 	},
 
 	shouldRender : function(pageText, index){