It's super easy to fat finger "Finished" right after you choose "Pause" from the drop down. And then you are stuck with the book being finished. There is no way to clear that date. I ended up having to remove the book and then start it again on today's date. I know I could have changed the start date, but it's a book I read infrequently, so I would have had to replicate all the pause dates in addition to the reading history. I didn't want to take the time to mess with that. It should be easy to just clear a mistaken finished date.