'jQuery( html, [ ownerDocument ] ).find( selector )' always return [], why?

'jQuery( html, [ ownerDocument ] ).find( selector )' always return [], why?

Hi,

find method always return [], when calling with jQuery Object created by 'jQuery( html, [ ownerDocument ] )'.
Is there any know bug?

Here's the screenshot tested in jQuery 1.5.2 w/ Chrome 10 JS console.