# HG changeset patch
# User Siddharth Agarwal <sid0@fb.com>
# Date 1431125448 25200
# Node ID db308eba525101c0864f6799c707ea3693c30c7c
# Parent  11ca21820a955c6fd05d820896d2ec0f9dddca5c
overlaychangectx: use overlayrevlog logic to determine parents

The old logic was broken -- it didn't work at the boundary between hg and git
commits. The logic in overlayrevlog.parents handles that correctly.

This is the last fix required for Mercurial 3.4.

diff -r 11ca21820a95 -r db308eba5251 hggit/overlay.py
--- a/hggit/overlay.py	Fri May 08 16:00:45 2015 -0700
+++ b/hggit/overlay.py	Fri May 08 15:50:48 2015 -0700
@@ -202,10 +202,13 @@
         return self.commit.message
 
     def parents(self):
-        parents = self.commit.parents
+        cl = self.repo.changelog
+        parents = cl.parents(cl.node(self._rev))
         if not parents:
             return [self.repo['null']]
-        return [overlaychangectx(self.repo, sha) for sha in parents]
+        if parents[1] == nullid:
+            parents = parents[:-1]
+        return [self.repo[sha] for sha in parents]
 
     def manifestnode(self):
         return bin(self.commit.tree)