it happens... truly it's the most nightmarish thing about being a programmer, how many people can get messed up by your mistake

good that it's found and fixed and move on and don't forget... we live in a world where many clearly bad things are said to be "ok" when they are not 

 If you’ve been dreading it then it’s been an ongoing issue. 

Why didn’t you tell everyone initially when you found it? Genuinely? 

Not judging you, seeking to understand.