From a5340f6eb32037149065dddcbb988db05e7bbe48 Mon Sep 17 00:00:00 2001
From: Angus McLeod <angus@mcleod.org.au>
Date: Mon, 30 Mar 2020 09:23:32 +1100
Subject: [PATCH] FIX: event removal

---
 plugin.rb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/plugin.rb b/plugin.rb
index 78e90fd..49a742f 100644
--- a/plugin.rb
+++ b/plugin.rb
@@ -270,6 +270,8 @@ def include_event_going_total?
   )
 
   ::PostRevisor.track_topic_field(:event) do |tc, event|
+      event = event.present? ? event : {}
+    
       if tc.guardian.can_edit_event?(tc.topic.category)
         event_start = event['start'] ? event['start'].to_datetime.to_i : nil
         start_change = tc.record_change('event_start', tc.topic.custom_fields['event_start'], event_start)