From 2abefc27a27ad96023044b3d32fac11739517829 Mon Sep 17 00:00:00 2001
From: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
Date: Fri, 24 Jul 2020 15:58:17 +0200
Subject: [PATCH] fix: handle missing ERB

---
 client/src/templates/Challenges/redux/index.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/client/src/templates/Challenges/redux/index.js b/client/src/templates/Challenges/redux/index.js
index b87971dd3f..9fb862c262 100644
--- a/client/src/templates/Challenges/redux/index.js
+++ b/client/src/templates/Challenges/redux/index.js
@@ -130,6 +130,9 @@ export const createFiles = createAction(types.createFiles, challengeFiles =>
 
 // TODO: secure with tests
 function getLines(contents, range) {
+  if (isEmpty(range)) {
+    return '';
+  }
   const lines = contents.split('\n');
   const editableLines = isEmpty(lines)
     ? []