### Description When copying a value from another site, the changes don't persist on save. ### Steps to reproduce 1. In a multisite setup with fields set to translatable, add differing content to Site A & Site B 2. On one site, click `...` -> Copy value from site... 3. Save the entry https://github.com/user-attachments/assets/b264ca6c-5a37-4703-b566-b00692c88ec3 ### Expected behaviour Content is saved properly ### Actual behaviour Field is not marked as dirty & changes are reverted ### Additional info Reverting to CkEditor 5.3.1 resolves the issue. Looks to be related to this change in 5.4.0: https://github.com/craftcms/ckeditor/pull/555 - Craft version: 5.9.23 - PHP version: 8.4 - Plugins & versions: CkEditor 5.4.0 / 5.5.0
Description
When copying a value from another site, the changes don't persist on save.
Steps to reproduce
...-> Copy value from site...CleanShot.2026-05-13.at.11.58.35.mp4
Expected behaviour
Content is saved properly
Actual behaviour
Field is not marked as dirty & changes are reverted
Additional info
Reverting to CkEditor 5.3.1 resolves the issue. Looks to be related to this change in 5.4.0: #555