id,summary,reporter,owner,description,type,status,priority,milestone,component,version,severity,resolution,keywords,cc
16152,category__in now shows posts from children categories too,linuxologos,,"Until 3.0.4 category_in parameter of query_posts() does not show posts from any children of the categories given to it, as currently stated in the [http://codex.wordpress.org/Function_Reference/query_posts#Category_Parameters codex] too. In 3.1-RC2 it does show posts from child-categories.

Let's say we have a category with some subcategories. Posts are assigned either to parent category '''or''' to children of the category (not both to parent and child). If we use 

{{{
query_posts( array( 'category__in' => array($parent_category_id) ) )
}}}

in 3.0.4 only posts assigned to parent category are shown.
But in 3.1 posts from parent as well as subcategories are shown with the same code.

I'm not sure if it is a bug or just the way the parameter will work since 3.1, but people using this parameter that way will possibly see their sites working unexpectedly after upgrading to 3.1.
",defect (bug),closed,normal,3.1,Query,3.1,normal,fixed,has-patch commit,