From 6e12fc1c09d47036166ccab0a6ab653e8e359e9b Mon Sep 17 00:00:00 2001
From: David Benson <david@draw.io>
Date: Fri, 20 Oct 2023 13:34:57 +0100
Subject: [PATCH] 22.0.6 release

---
 src/main/webapp/plugins/nextcloud.js | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/main/webapp/plugins/nextcloud.js b/src/main/webapp/plugins/nextcloud.js
index 255e8b746..308650be9 100644
--- a/src/main/webapp/plugins/nextcloud.js
+++ b/src/main/webapp/plugins/nextcloud.js
@@ -543,21 +543,27 @@ Draw.loadPlugin(function(ui)
     
     ui.installMessageHandler = function(callback)
     {
-        origInstallMessageHandler.call(this, function()
+        origInstallMessageHandler.call(this, function(xml, evt)
         {
+            try
+            {
+                // New empty files
+                if (JSON.parse(evt.data).xml == ' ') return;
+            }
+            catch (e) {} // Ignore
+
             callback.apply(this, arguments);
             
             var file = ui.getCurrentFile();
             loadDescriptor = loadDescriptor || {};
-            
+
             // New files call this twice, so we need to check if the file is loaded
             if (!loadDescriptor.isLoaded)
             {
+                loadDescriptor.isLoaded = true;
                 file.setDescriptor(loadDescriptor);
                 ui.fileLoaded(file, true);
             }
-
-            loadDescriptor.isLoaded = true;
         });
     }