Pass request.user when doing a document version revert

mayan/apps/documents/models.py

@@ -315,13 +315,13 @@ class DocumentVersion(models.Model):
 
         return detected_pages
 
-    def revert(self):
+    def revert(self, user=None):
         """
         Delete the subsequent versions after this one
         """
         logger.info('Reverting to document document: %s to version: %s', self.document, self)
 
-        event_document_version_revert.commit(target=self.document)
+        event_document_version_revert.commit(actor=user, target=self.document)
 
         for version in self.document.versions.filter(timestamp__gt=self.timestamp):
             version.delete()