diff --git a/rhodecode/lib/vcs/backends/svn/repository.py b/rhodecode/lib/vcs/backends/svn/repository.py
index 1a60d71c..d0ae04de 100644
--- a/rhodecode/lib/vcs/backends/svn/repository.py
+++ b/rhodecode/lib/vcs/backends/svn/repository.py
@@ -308,9 +308,9 @@ class SubversionRepository(base.BaseRepository):
         start_raw_id = self._sanitize_commit_id(start_id)
         end_raw_id = self._sanitize_commit_id(end_id)
         
-        
+        # for empty revisions in SVN
         if start_raw_id not in self.commit_ids or end_raw_id not in self.commit_ids:
-            return base.CollectionGenerator(self, []) 
+            return base.CollectionGenerator(self, [])
 
         start_pos = self.commit_ids.index(start_raw_id) if start_id else None
         end_pos = max(0, self.commit_ids.index(end_raw_id)) if end_id else None