I patched my theme using the following snippet:
if( class_exists('All_in_One_SEO_Pack') && array_key_exists('aiosp', $GLOBALS) && method_exists($aiosp, 'wp_title')){
add_filter( 'wp_title', array( $aiosp, 'wp_title' ), 20 );
}
… and on the first glance everything seems to work as expected. So my code should not withhold AIOSEOP to apply title rewriting.
Kind regards,
– lars.