736c736,740
< 				$t_projects[ $row['id'] ] = ( $row['parent_id'] === NULL ) ? 0 : $row['parent_id'];
---
> 				if ( !isset ( $t_projects[ $row['id'] ] ) ) {
> 					$t_projects[ $row['id'] ] = array();
> 				}
> 
> 				$t_projects[ $row['id'] ][] = ( $row['parent_id'] === NULL ) ? 0 : $row['parent_id'];
742,744c746,751
< 			foreach ( $t_projects as $t_id => $t_parent ) {
< 				if ( ( $t_parent !== 0 ) && isset( $t_projects[$t_parent] ) ) {
< 					$t_prune[] = $t_id;
---
> 			foreach ( $t_projects as $t_id => $t_parent_list ) {
> 				foreach ( $t_parent_list as $t_parent ) {
> 					if ( ( $t_parent !== 0 ) && isset( $t_projects[$t_parent] ) ) {
> 						if ( !in_array ( $t_id, $t_prune ) )
> 							$t_prune[] = $t_id;
> 					}