The click event fires only after the mouse button is released, which
may happen on the outside, after the user tried to select something
and overrun accidentally. A close is then not desired as the user
may loose input. The mousedown event fires right when the button
is pressed and suffices on the outside of the modal.
Isn't the prettiest fix. I would have liked to completely
remove the target preparation from `getLinkTargetFor`.
But this is the easiest fix since it's only for modals
that preparation is not desired. It's also the most
compatible change.
