From a3b01a2dc1457fa644861bbeb6f8e593ec720823 Mon Sep 17 00:00:00 2001
From: Pierre-Yves Chibon <pingou@pingoured.fr>
Date: Dec 01 2016 14:29:00 +0000
Subject: Handle the situation where the repo's head is unborned


Fixes an error reported by email

---

diff --git a/pagure/ui/repo.py b/pagure/ui/repo.py
index 2e2c676..b22e5df 100644
--- a/pagure/ui/repo.py
+++ b/pagure/ui/repo.py
@@ -694,7 +694,7 @@ def view_blame_file(repo, filename, username=None, namespace=None):
 
     branchname = flask.request.args.get('identifier', 'master')
 
-    if repo_obj.is_empty:
+    if repo_obj.is_empty or repo_obj.head_is_unborn:
         flask.abort(404, 'Empty repo cannot have a file')
 
     commit = repo_obj[repo_obj.head.target]