We have an internal template that when you create text in the doc and then
select "Bullet list" styling, it affects the whole document turning the
whole doc into bullets.

We then apply a single undo and the bullet list is still there properly
formatted.

This seems like a bug as we only do a single undo and the document is
formatted properly... (as opposed to undo and the document is how it was
before we applied the bullet list).

Any help is appreciated.