From 8668618aa0b9e47fd3b672ad4179f4037b5a2fa6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Anne?= <cedric.anne@gmail.com>
Date: Fri, 20 Oct 2023 09:35:21 +0200
Subject: [PATCH] Prevent TinyMCE to remove styles when content is pasted from
 a template

fixes #15636
---
 js/fileupload.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/js/fileupload.js b/js/fileupload.js
index 266ec30aa6a..baf410bd652 100644
--- a/js/fileupload.js
+++ b/js/fileupload.js
@@ -349,7 +349,8 @@ const setRichTextEditorContent = function(editor_id, content) {
         editor.setContent('');
         // use paste command to force images registering
         editor.execCommand('mceInsertClipboardContent', false, {
-            html: content
+            html: content,
+            internal: true, // disable some filterings operations that would remove styles (maybe a bug)
         });
         // force trigger of event handlers that will save editor contents
         // and remove "required" state