removeData not working for names with a "-"

[[email protected]…]

When using names containg a "-" character in the data's name the removeData function does not work. Here some steps to reproduce:

var $b = $('body'); $b.data('x-y', 1); console.log($b.data('x-y')); ok, this shows a 1 $b.removeData('x-y'); console.log( $b.data('x-y') ); not ok, this shows still a 1, should show undefined

[Rick Waldron]

Duplicate of #7328.