Typing 1. or + and hitting space changes block type.

[justWalsdi]

Is your feature request related to a problem? Please describe.
I'm having an issue where if I write 1. or "+" inside of a custom block and then hit space, it will change the block type to a list. This behavior is present in the alert block with full dx example.

Describe the solution you'd like
I'm not sure if there is a way to create an API for this other than listening on tiptap events manually. Looking for guidance.

Describe alternatives you've considered
I tried to check prosemirror and tiptap docs but couldn't find anything helpful. I also read through existing issues and couldn't find anything similar.

Bonus
[ ] I'm a sponsor and would appreciate if you could look into this sooner than later 💖