Editor initializes with 2 paragraphs

[podarcis]

The editor initializes with two paragraphs (<p></p><p></p> instead of <p></p>) in some cases. I suspect it happens when the underlying field is NULL instead of an empty string, e.g. on a fresh object.

This results in a superfluous paragraphs in case the user did not remove it.

Steps to reproduce

1. Open Pimcore demo (either platform version 2024.x or 2025.x).
2. Create a new object that contains a WYSIWYG.
3. Set focus into the field.
4. Confirm by moving cursor (with key up/down) that there are two vertical places for the cursor to be. Also check the sources using toolbar "HTML Edit" that there are now two paragraphs.

[github-actions]

Thanks a lot for reporting the issue. We did not consider the issue as "Pimcore:Priority", "Pimcore:ToDo" or "Pimcore:Backlog", so we're not going to work on that anytime soon. Please create a pull request to fix the issue if this is a bug report. We'll then review it as quickly as possible. If you're interested in contributing a feature, please contact us first here before creating a pull request. We'll then decide whether we'd accept it or not. Thanks for your understanding.