Poll bug : Add 5 questions, submit, delete 1 question, can't add another reached max question limit.

[+Warwagon MVC]

When I was creating the typing poll, I had 5 questions, 1 of which was the age group of people who couldn't type. After submitting the poll, I realized it was a dumb question (because you may know a lot of people who can't type) and deleted it. I then only had 4 questions. I then wanted to replace the one I just deleted with a new one but I was met with the error

 

"You've reached the maximum number of questions a poll may have"