The wiki page is correct but your test case is different from what it says.

x.find('div').find('a') is not the same as $('div').find('a')

I suppose this bug could question whether or not find should remove non-unique results. There might be performance reasons why it isn't included now or other reasons I'm not aware of.

You can replicate the bug using $('div').find('a') by visiting the bbc.co.uk home page - here's the output from Firebug:

>>> $j.fn.jquery

"1.2.3"

>>> $j('a').length

324

>>> $j('div a').length

324

>>> $j('div').find('a').length

1863

Confirmed in jQuery 1.3. I would have expected find to remove the dups.

Fixed in SVN rev [6199].

Still doesn't work as in the wiki. Try this:

var x = $('<div><div><div><a></a><a></a></div></div><div>');

console.log(x.find('div a').length);

console.log(x.find('div').find('a').length);

The output is

2

1

Should be

2

2

Works properly (2 2) with 1.4.2 in Firefox 3.6.3 and IE8.

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