Code Block: Show two horizonal scroll bars

[bph]

Adding this snippet add_filter( 'gutenberg_use_widgets_block_editor', '__return_false', 100 ); to a post resulted in two horizontal scrollbars.

To reproduce:

Add the snippet to a post

Expected behavior:

I didn't think that the line would be big enough to have any scrollbars, let alone two.

Screenshots:

Isolating the problem:

• This bug happens with no other plugins activated
• This bug happens with the default Twenty Twenty WordPress theme active
• This bug happens without the Gutenberg plugin active
• I can reproduce this bug consistently using the steps above

I am in the middle of testing other functionality, just didn't want to loose this issue. I will come back and double-check on the items.

WordPress version:

5.5.1

Gutenberg version:

9.1