Unable to change heading level for site title

[Retrofitterdk]

Describe the bug
After adding site-titel block to either a html-template or a page with the editor, I am unable to change heading level. It is preset to H1 and cannot be changed.

To reproduce
Steps to reproduce the behavior:

1. Enable full site editing
2. Go to Gutenberg -> Site Editor
3. Add Site Title Block
4. Try to change heading level for the Site Title Block

or

1. Add a new page
2. Add Site Title Block
3. Try to change heading level for the Site Title Block

Expected behavior
As described in #20361 I would have expected to be able to heading level for the site title since it is not always appropriate to use H1.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: MacOS
• Browser Chrome, Safari and Firefox

Additional context

• Gutenberg version 7.8.1
• Full site editing enabled
• WordPress version 5.4

[annezazu]

Thanks for reporting @Retrofitterdk! I'm closing this in favor of the following earlier issue which touches on adding styling attributes to Site Title, Site Description, and Post Title Blocks: #19491