:checked pseudo selector returns duplicate elements for JavaScript-checked input checkboxes

[devonnigelreed@…]

Example:

I create an input checkbox - say with id "test" then check it manually. If I evaluate $('#test:checked').length, I will get 1. However, if I use JavaScript to check the checkbox, say with $('#test').attr('checked', true), then $('#test:checked').length will return 2.

[addyosmani]

Thanks for submitting a ticket to the jQuery Bug Tracker. I've created a minimal test case based on the information you've provided us with, but whether checked is initially set and changed using attr() later on or unset and adjusted, both cases appear to be working fine with the length being returned correctly. See here for the minimal test: ​http://jsfiddle.net/AKXrU/