After update to 1.0.14 snippet stopped working

<?php
/* hierarchy_based_chunk
 
[!banner?
    &parent_ids=`1,2,3`
    &chunk_names=`banner_chunk1,banner_chunk2,banner_chunk3`
    &def_chunk_name=`banner_main`
!]
 
the above snippet call in a template produces:
hbc_1 chunk on doc 2 and all children/grandchildren
hbc_2 chunk on doc 21 and all its children/grandchildren
hbc_def chunk on all other documents
 
*/
// set the default ids of the top level parent containers
$default_parent_ids = array();
 
// set the default names of the chunks to display
// based on the same order as the $parent_ids
$default_chunk_names = array();
 
// set the overall default chunk name
$default_chunk_name = isset($def_chunk_name) ? $def_chunk_name : '';
 
// ===== end setup ===== //
 
 
$parent_ids = isset($parent_ids) ? explode(',',$parent_ids) : $default_parent_ids;
$chunk_names = isset($chunk_names) ? explode(',',$chunk_names) : $default_chunk_names;
 
if(count($parent_ids) > 0 && count($chunk_names) > 0){
 
    $uparent = $modx->runSnippet('UltimateParent');
    $check_array = array($modx->documentObject['id'],$modx->documentObject['parent'],$uparent);
 
    for($x=0; $x < count($parent_ids); $x++){
        if(in_array($parent_ids[$x],$check_array)){
            $print_chunk = $chunk_names[$x];
        }
    }
     
    // if $print_chunk is empty set to overall default
    if($print_chunk ==''){
        $print_chunk = $default_chunk_name;
    }
     
}
 
return $modx->getChunk($print_chunk);
?>

$check_array = array((string)$modx->documentObject['id'],(string)$modx->documentObject['parent'],(string)$uparent);

$uparent = $modx->runSnippet('UltimateParent', array('id' = $docid));