From 8a435a2149a85e0aae3bfe873ed45a8e05d5b713 Mon Sep 17 00:00:00 2001
From: zadam <adam.zivner@gmail.com>
Date: Mon, 5 Oct 2020 23:56:59 +0200
Subject: [PATCH] don't save zero byte buffers as note revisions

---
 src/services/note_revisions.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/services/note_revisions.js b/src/services/note_revisions.js
index 19eabc120..cbf97c16a 100644
--- a/src/services/note_revisions.js
+++ b/src/services/note_revisions.js
@@ -23,17 +23,17 @@ function protectNoteRevisions(note) {
 
 /**
  * @param {Note} note
- * @return {NoteRevision}
+ * @return {NoteRevision|null}
  */
 function createNoteRevision(note) {
     if (note.hasLabel("disableVersioning")) {
-        return;
+        return null;
     }
 
     const content = note.getContent();
 
-    if (!content) {
-        return;
+    if (!content || (Buffer.isBuffer(content) && content.byteLength === 0)) {
+        return null;
     }
 
     const contentMetadata = note.getContentMetadata();