From 1dabda4bdc88d82a675e9ac3a285ece9d7ddfa4f Mon Sep 17 00:00:00 2001
From: Pierre-Yves Chibon <pingou@pingoured.fr>
Date: May 28 2015 11:47:58 +0000
Subject: rollback the transaction if something happened at the DB level


---

diff --git a/pagure/api/fork.py b/pagure/api/fork.py
index 22e5a55..daf1d00 100644
--- a/pagure/api/fork.py
+++ b/pagure/api/fork.py
@@ -476,7 +476,7 @@ def api_pull_request_add_comment(repo, requestid, username=None):
             SESSION.commit()
             output['message'] = message
         except SQLAlchemyError, err:  # pragma: no cover
-            print err
+            SESSION.rollback()
             raise pagure.exceptions.APIError(400, error_code=APIERROR.EDBERROR)
 
     else: