pagination focusing on page that hasn't been clicked

[benthepoet]

I've noticed that when working with the pagination directive that the focus style will be applied to a page button that hasn't been clicked. Versions I'm using are below.

• angular 1.2.27
• ui-boostrap 0.12.1
• bootstrap 3.3.4

This only happens when you have max-items set to less than the number of total pages. You'll see it when you click a page that shifts the visible range.

To demonstrate the issue I have a Plunk.
http://plnkr.co/edit/z8a5lNkvtR7zo9gVqU9e?p=preview

Click page 2 and you should see that it shifts and highlights page 2 as being active but page 1 is now focused (cause it'll go away if you click outside the pager).