diff --git a/core/modules/field/field.attach.inc b/core/modules/field/field.attach.inc
index 2bfb936..dd5c4d1 100644
--- a/core/modules/field/field.attach.inc
+++ b/core/modules/field/field.attach.inc
@@ -571,6 +571,8 @@ function _field_invoke_multiple($op, $entity_type, $entities, &$a = NULL, &$b =
           // Enable BC Entity if necessary.
           $entity = $entity->getBCEntity();
           $entity->{$field_name}[$langcode] = $grouped_items[$field_id][$langcode][$id];
+          // Reset back to original.
+          $entity = $entity->getOriginalEntity();
         }
       }
     }