The transition to this stage has already been made

Good afternoon. I fill in the process data at the 1st stage. I'm moving on to the second one. There is a check for the fields to be filled in, and the box warns me what needs to be filled out. - Excellent. I fill in the field that I missed and go to the second stage But then boxing says that I have already moved to the stage, wait 10 seconds? What's this? The idea is great. but the implementation is terrible. If it's to avoid double-clicking the button, great, but it shouldn't apply to cases where the transition was interrupted by a check. Such "improvements" must be done so that they satisfy everyone, or are pluggable. I'm waiting for corrections. While this violates the algorithm of work. Thank you. [file]2765[/file]