This is not about setting the list formatting for the reply itself (that's T265750: Make it easy to "outdent" by changing the colons/list level). This is about adding a comment that happens to contain a list.
Steps to reproduce
- Click the 'Reply' button. Use the visual mode.
- Type a sentence. Press 'Return'
- Type * and a space and a word, to make a bullet list.
- Press 'Return'.
- Another item for your bullet list is automagically supplied.
- Now try to get back to a regular paragraph.
Goal:
Hello. You need to do three things. * First * Second * Third Happy editing, ~~~~
What you get instead:
Hello. You need to do three things. * First * Second * Third * Happy editing, ~~~~