From ba67446eeea8e2840d8deca616711754b8d04247 Mon Sep 17 00:00:00 2001
From: Zanz2 <zan.zagar@hotmail.com>
Date: Sat, 3 Mar 2018 22:26:00 +0100
Subject: [PATCH] quick fix for if previous guid is unknown format

---
 app/helpers/protocols_io_helper.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/app/helpers/protocols_io_helper.rb b/app/helpers/protocols_io_helper.rb
index d9fb01648..18998dc2e 100644
--- a/app/helpers/protocols_io_helper.rb
+++ b/app/helpers/protocols_io_helper.rb
@@ -322,6 +322,7 @@ module ProtocolsIoHelper
 
   def protocols_io_guid_reorder_step_json(unordered_step_json)
     base_step = unordered_step_json.find { |step| step['previous_guid'].nil? }
+    return unordered_step_json if base_step.nil?
     number_of_steps = unordered_step_json.size
     step_order = []
     step_counter = 0