Don't remove e.g. "mermaid" at begin of Fenced Code Blocks

[jandechent]

Describe the bug
I have a markdown file, using mermaid to make that work with various apps, I use :

```mermaid
<mermaid code>
```

Each time I hope this markdown with this text app, this is reverted to

```
<mermaid code>
```

Reproducible Repeated three times
Expected behavior Please, do not "clean up" my markdown.
Text app version: 3.6.0
Nextcloud version: 25.0.1

[susnux]

Can you please update to 25.0.2 and verify this still persists? Because I think this should have fixed with that update:
#3480

[jandechent]

Sorry, indeed this fixed it. I did not see the bugfix! Thanks