in iOS tapping outside a dropdown does not dismiss the dropdown

[parachutemind]

Using bootstrap 2.3.1 on an iOS device, I can't get a dropdown to close when I touch outside the dropdown popover (unless I happen to touch on another element like a link or image).

I tried attaching to 'touchend' and removeCLass('open') on dropdowns that are opened but that brakes following menu items that are links.

You can see the behavior of dropdowns not dismissing by loading this page in an iOS device: http://twitter.github.com/bootstrap/components.html#buttonDropdowns

1. Tap on one of the dropdown buttons to show the dropdown menu
2. Tap outside the dropdown (NOT a link) and you will see that the dropdown is not dismissed. The expectation is that the dropdown is closed.

[cvrebert]

Might be related to #7118.

[fat]

you have to tap the dropdown again in mobile