Is sorting misbehaving?

I've just found that when I have a series of books where the title contains a number, the sorting doesn't work right.

For example, I get

Awesome Book, Volume 1
Awesome Book, Volume 10
Awesome Book, Volume 11
Awesome Book, Volume 12
Awesome Book, Volume 2
Awesome Book, Volume 3
Awesome Book, Volume 4
...

I don't see any tweak that would fix this sorting. Is there something I'm missing or a plug-in that adjusts the sorting behavior?

Or is this a known bug?

If it's intentional, I'm curious whether the sorting algorithm can be overridden in a plug-in -- I could whip one up.

Thanks