Strange behavior with integer unsigned type...

[Marko Domanovic]

I noticed rather interesting thing... If you deduct 1 from the 0 which is 
stored in integer unsigned field, you get 2^32, not 0. I think that's how 
things are not working with version 4, and want to ask is this behavior bug 
or feature in mysql version 5, and is it customizable?

Greetings,
Marko