weird behavior of "code" feature on the prosemirror.net front page editor

[vgu-natbraille]

1. type 'a'
2. select 'Type/code' in menu bar
3. type 'enter'
4. type 'b'
5. place the cursor at the end of the first ('a') line
6. select 'Type/plain' in menu bar

content of the editor

a
b

7. type 'c'

the second line is now merged with the first line, displaying

ac b

(using firefox 102)

Is does not feel like an intended behavior, or I don't understand its rationale.

[marijnh]

Attached patch should help with this.

[vgu-natbraille]

seems good thanks !