src/properties/class-papi-property-relationship.php
public function load_value( $values, $slug, $post_id ) {
		$values = (array) papi_maybe_json_decode( maybe_unserialize( $values ), true );
		return array_map( 'papi_maybe_convert_to_object', $values );
	}
public function load_value( $values, $slug, $post_id ) {
		$values = (array) papi_maybe_json_decode( maybe_unserialize( $values ), true );
		return array_map( 'papi_maybe_convert_to_object', $values );
	}
Change value after it's loaded from the database.

@param  mixed  $values
@param  string $slug
@param  int    $post_id

@return mixed