.is('[disabled]') return wrong values in Opera

[San4es]

Example:

<ul>
  <li></li>                     
  <li disabled></li>            
  <li disabled='disabled'></li> 
  <li disabled=''></li>         
</ul>

Function .is('[disabled]') returns for each LI element in Opera:

false, false, true, false

but expected

false, true, true, true.

There is no such problem in other browsers.

[San4es]

There is an working example: ​http://jsfiddle.net/A6qfM/6/. Tests were performed in following Opera 11.51 with jQuery 1.6.2, 1.6.3, 1.6.4.

[addyosmani]

Tested in both Opera.current/stable and Opera.next with jQuery edge (1.7RC): this results in the expected output of false, true, true, true. Reverting to jQuery 1.6.4 or below results in the incorrect output so this has definitely already been fixed. Please use jQuery 1.7RC1 for now as this fix should already be in there. ​http://jsfiddle.net/A6qfM/7/

[addyosmani]

Looking for the duplicate as there must have been one for this to have been patched. Will update once located.

[San4es]

Thank you a lot for operative answer and bug fix.