.find works wrong when searching by value attribute

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html:

<form name="f" id="f">
	<input name="f1" type="text" value="" /> <br/>
	<input name="f2" type="text" value="" /> <br/>
	<input name="f3" type="text" value="" /> <br/>
</form>

js:

$('#f').find('input[value=""]').length

always returns 3 (even if all fields are filled)

in 1.4.2. everything is ok

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additional:

test case

​http://jsfiddle.net/VNN2T/9/

brouser: firefox 3.6.10 (Win)

[SlexAxton]

This can be reproduced in several browsers. I also checked and made sure that this was a regression. It works as expected in 1.4.2

[snover]

Duplicate of #7212.