categories aren't excluded by pre_get_posts

[jorbin]

Using a filter such as:

function jorbin_exclude_category($query) {
	if ( $query->is_feed || $query->is_home ) {
		$query->set('cat', '-9,-2,-8,-25,-13');
	}
	return $query;
}

add_filter('pre_get_posts', 'jorbin_exclude_category');

Fails on trunk, but works on 3.0.1 . It sets the category properly, but the posts aren't filtered out, so I hesitate to blame #14494

[scribu]

This is because all the taxonomy related queries are parsed in parse_query() and put into the 'taxonomy_query' query var.

PS: 'pre_get_posts' is an action, not a filter.

[scribu]

The solution would be to re-parse all the query vars before calling get_tax_sql().

[scribu]

(In [16380]) Re-parse tax query just before calling get_tax_sql(). Fixes #15161