New to riding, 2015 Honda cbr650f?

So I just got my first bike the other day from a dealership. They have done maintainence on it so I don't think it's anything mechanical with my bike. But I've noticed when I come to a complete stop in 1st gear the bike just shuts off on its own. I've stalled it while shifting into 2nd and third a few times and it doesn't feel like its stalling when this happens, the bike doesn't lurch forward or anything, it simply just shuts off. Any ideas what I could be doing wrong? Or any tips on how to come to a complete stop without this happening? New to riding, 2015 Honda cbr650f