entity_save_original.patch

diff --git a/includes/entity.controller.inc b/includes/entity.controller.inc
index 593d60f..896e402 100644
--- a/includes/entity.controller.inc
+++ b/includes/entity.controller.inc
@@ -466,6 +466,14 @@ class EntityAPIController extends DrupalDefaultEntityController implements Entit
         // is not default we have to restore the field values of the default
         // revision now by invoking field_attach_update() once again.
         if ($this->revisionKey && !$entity->{$this->defaultRevisionKey} && !empty($this->entityInfo['fieldable'])) {
+          // <COMPUTERMINDS HACK> @see https://support.computerminds.co.uk/issues/25390
+          // Madness was happening re revisions of paragraphs. Specifically,
+          // at this point temporary files on our new revision were getting
+          // thrown away because they weren't used on the 'current' or the
+          // 'original' as it was told it. Not quite why this wasn't always an
+          // issue with field collection, but this seems to sort it out.
+          $entity->original->original = $entity->original;
+          // </COMPUTERMINDS HACK>
           field_attach_update($this->entityType, $entity->original);
         }
       }