# HG changeset patch
# User Marcin Kuzminski <marcin@rhodecode.com>
# Date 2019-07-29 15:20:33
# Node ID 42afb6337759f85a6c482ffbf30009e4ea311ab7
# Parent  c5e7292acdc3326fcb1490cccde0c5430b19dd10

git: ensure empty diff is returned for no matching file filter

diff --git a/vcsserver/git.py b/vcsserver/git.py
--- a/vcsserver/git.py
+++ b/vcsserver/git.py
@@ -996,6 +996,8 @@ class GitRemote(RemoteBase):
                 for p in diff_obj:
                     if p.delta.old_file.path == file_filter:
                         return p.patch or ''
+                # fo matching path == no diff
+                return ''
             return diff_obj.patch or ''
 
     @reraise_safe_exceptions