Steps to reproduce.

1. Create a numbered list at the end of a document.
2. Add a few list items with text.
3. On the last list item with some text, insert a code macro on the same line.
4. It should put the code macro on a new line.
5. Now move your cursor below the code macro by clicking outside and below the code macro
6. Add some text. It should be still indented as part of the list, this is correct behavior because it will continue the list if you hit enter.
7. Change the style to a heading style.
8. Indent becomes permanent and hard to break out of the list without deleting content.