Terms listed alphabetically, not in creation order

When entering terms from admin/content/taxonomy, they're saved in alphabetical order (i.e. no weights) rather than the order they were entered.

So when inputting:
One
Two
Three

You get

One
Three
Two

Shown in the term listing or node/add drop down. This make sense if you are importing large chucks of data that needs to be alphabetically ordered, but for a lot of normal taxonomies this is rather silly.