[wp-testers] Error classes.php in includes/.. 2.6 trunk

[spencerp]

*Warning*: in_array() [function.in-array 
<http://www.vindictivebastard.com/id/function.in-array>]: Wrong datatype 
for second argument in */home/user/public_html/wp-includes/classes.php* 
on line *162

Getting error in blog header...
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