From 2525857c206284993e2ec24a0176a8217f44c6c0 Mon Sep 17 00:00:00 2001
From: zadam <zadam.apps@gmail.com>
Date: Sat, 14 Jan 2023 00:01:24 +0100
Subject: [PATCH] fix null content when protecting notes, closes #3523

---
 src/services/notes.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/services/notes.js b/src/services/notes.js
index 813e75bc6..c361b0542 100644
--- a/src/services/notes.js
+++ b/src/services/notes.js
@@ -286,8 +286,10 @@ function protectNote(note, protect) {
 
             note.isProtected = protect;
 
-            // this will force de/encryption
-            note.setContent(content);
+            if (content !== null) { // see https://github.com/zadam/trilium/issues/3523
+                // this will force de/encryption
+                note.setContent(content);
+            }
 
             note.save();
         }