# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 2019-08-30 16:10:00
# Node ID a61a8f78da284984961a61746749a5128414a4c8
# Parent  3e2520acf17b4094148ae14d30c031bdacc793df

unionrepo: use normal inheritance scheme to call revdiff

diff --git a/mercurial/unionrepo.py b/mercurial/unionrepo.py
--- a/mercurial/unionrepo.py
+++ b/mercurial/unionrepo.py
@@ -89,7 +89,7 @@ class unionrevlog(revlog.revlog):
                 self.revlog2.rev(self.node(rev1)),
                 self.revlog2.rev(self.node(rev2)))
         elif rev1 <= self.repotiprev and rev2 <= self.repotiprev:
-            return self.baserevdiff(rev1, rev2)
+            return super(unionrevlog, self).revdiff(rev1, rev2)
 
         return mdiff.textdiff(self.rawdata(rev1), self.rawdata(rev2))