From acc82d850ce6930a99bd2bd5b391e9ded3ded4a2 Mon Sep 17 00:00:00 2001
From: Ed Horsford <mail@edwardhorsford.com>
Date: Tue, 4 Jun 2019 20:15:00 +0100
Subject: [PATCH 1/3] Check for empty tags

Fixes #556
---
 src/TemplateData.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/TemplateData.js b/src/TemplateData.js
index 501553aef..84e3acee8 100644
--- a/src/TemplateData.js
+++ b/src/TemplateData.js
@@ -338,8 +338,13 @@ class TemplateData {
   }
 
   static cleanupData(data) {
-    if ("tags" in data && typeof data.tags === "string") {
-      data.tags = data.tags ? [data.tags] : [];
+    if ("tags" in data){
+      if (typeof data.tags === "string"){
+        data.tags = data.tags ? [data.tags] : [];
+      }
+      if (data.tags === null){
+        data.tags = []
+      }
     }
 
     return data;

From bb34faac22da3258833ebeaad55d967ff2ff8bb0 Mon Sep 17 00:00:00 2001
From: Ed Horsford <mail@edwardhorsford.com>
Date: Tue, 4 Jun 2019 21:05:24 +0100
Subject: [PATCH 2/3] refactor null check

---
 src/TemplateData.js | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/src/TemplateData.js b/src/TemplateData.js
index 84e3acee8..7ad390616 100644
--- a/src/TemplateData.js
+++ b/src/TemplateData.js
@@ -339,12 +339,9 @@ class TemplateData {
 
   static cleanupData(data) {
     if ("tags" in data){
-      if (typeof data.tags === "string"){
+      if (typeof data.tags === "string" || data.tags === null){
         data.tags = data.tags ? [data.tags] : [];
       }
-      if (data.tags === null){
-        data.tags = []
-      }
     }
 
     return data;

From 470eee8e183edf415df0b77aa5564080f9e1a9d8 Mon Sep 17 00:00:00 2001
From: Ed Horsford <mail@edwardhorsford.com>
Date: Wed, 12 Jun 2019 12:20:32 +0100
Subject: [PATCH 3/3] Make update more readable

---
 src/TemplateData.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/TemplateData.js b/src/TemplateData.js
index 7ad390616..a3df667ef 100644
--- a/src/TemplateData.js
+++ b/src/TemplateData.js
@@ -339,9 +339,12 @@ class TemplateData {
 
   static cleanupData(data) {
     if ("tags" in data){
-      if (typeof data.tags === "string" || data.tags === null){
+      if (typeof data.tags === "string"){
         data.tags = data.tags ? [data.tags] : [];
       }
+      else if (data.tags === null){
+        data.tags = []
+      }
     }
 
     return data;