Stuck on proposal draft when I decide not to go through with my proposal

I was making a proposition but in the compare stage realized somebody already reported this bug. As I wanted to create another proposal I was stuck the draft edition of my proposal and couldn't go back to a new one which involved adding a joint file. I tried to deconnect, refresh everything when I went back to the form I always came back to my draft proposal. We should add a cancel button for those cases when I don't want to publish my proposition and thus avoid getting stuck.