From 86e5a723f295be3949e33f9fd29a58c61e5ed76e Mon Sep 17 00:00:00 2001
From: Michael Watters <michael.watters@dart.biz>
Date: Nov 16 2018 21:35:28 +0000
Subject: Fixes #4017


The head name was previously hard coded to master.  This causes pull
requests on projects which do not have a master branch to fail.

---

diff --git a/pagure/lib/git.py b/pagure/lib/git.py
index 83d5cb6..58b0c95 100644
--- a/pagure/lib/git.py
+++ b/pagure/lib/git.py
@@ -945,9 +945,12 @@ class TemporaryClone(object):
             self.repo = pygit2.Repository(self.repopath)
 
         # Make sure that all remote refs are mapped to local ones.
+        headname = None
+        if not self.repo.is_empty and not self.repo.head_is_unborn:
+            headname = self.repo.head.shorthand
         for branchname in self.repo.branches.remote:
             localname = branchname.replace("origin/", "")
-            if localname in ("master", "HEAD"):
+            if localname in (headname, "HEAD"):
                 # This gets checked out by default
                 continue
             branch = self.repo.branches.remote.get(branchname)