angular-ui/ui-select — pull request #503 by andaviaco (2014-12-12 01:09:27+00:00)
Title: Fixed undesired submit action

If you use ui-select inside a form, the form gets submitted when you click the 'caret' button, by adding a type in the button it prevents this behavior :3.
tested in Chrome v.38.0.2125.122 using AngularJS v.1.2.27