1) As instructor, create an assignment. Pay attention to what you write in the Assignment Instructions.
2) Create a new assignment. Before getting a chance doing anything, an auto save dialogue asks if you want to compare content versions, which makes no sense since you have not written anything yet in this new assignment.
3) Click ok. You'll see the text it provides from auto save is from the earlier assignment which you successfully created.
Here is a video showing the issue: