Selector fails with string passed by $.each

[anonymous]

Please see this fiddle: ​http://jsfiddle.net/6Y3e2/

$(.b?).each(function () {

console.log($('.a').find(this).text()); <-- Behaves incorrectly

});

$(b?).each(function () {

console.log($('.a').find('.' + this).text()); <-- Behaves fine

});

[dmethvin]

Duplicate of #13068.