The result is that you get this confusing confirmation prompt that I always need to click Cancel on:
> "Without a Also visible to category, this task will only visible to users who are picked in one the user dropdowns (assigned to, etc). Do you want to continue?"
This is unexpected and confusing, and I'm always scared of losing data (especially when spending lots of time writing a ticket). I presume "Select" is supposed to behave like "OK/confirm", and if so then there should be no such prompt dialog. Otherwise... What is the true purpose of the "Select" button?