Merge pull request #6211 from jason-zz/patch-3

BUG Fix : relObject() should return null if one of the node is null

model/DataObject.php

@@ -3071,8 +3071,11 @@ class DataObject extends ViewableData implements DataObjectInterface, i18nEntity
 			$relations = explode('.', $fieldName);
 			$fieldName = array_pop($relations);
 			foreach($relations as $relation) {
+				// Bail if the component is null
+				if(!$component) {
+					return null;
 				// Inspect $component for element $relation
-				if($component->hasMethod($relation)) {
+				} elseif($component->hasMethod($relation)) {
 					// Check nested method
 					$component = $component->$relation();
 				} elseif($component instanceof SS_List) {