From 4b4f4fd188e23ccbb480a5ebcd887f16c015f18a Mon Sep 17 00:00:00 2001
From: Tom Moor <tom.moor@gmail.com>
Date: Tue, 2 Jun 2020 23:17:54 -0700
Subject: [PATCH] flow

---
 app/models/Document.js | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/app/models/Document.js b/app/models/Document.js
index d39683576..7c912a3ec 100644
--- a/app/models/Document.js
+++ b/app/models/Document.js
@@ -186,13 +186,17 @@ export default class Document extends BaseModel {
         });
       }
 
-      return await this.store.update({
-        id: this.id,
-        title: this.title,
-        text: this.text,
-        lastRevision: options.lastRevision,
-        ...options,
-      });
+      if (options.lastRevision) {
+        return await this.store.update({
+          id: this.id,
+          title: this.title,
+          text: this.text,
+          lastRevision: options.lastRevision,
+          ...options,
+        });
+      }
+
+      throw new Error('Attempting to update without a lastRevision');
     } finally {
       this.isSaving = false;
     }