diff -r 422beffd71ba -r 1470183068b8 mercurial/filelog.py
--- a/mercurial/filelog.py	Fri Sep 28 11:47:53 2018 -0700
+++ b/mercurial/filelog.py	Fri Sep 28 11:51:17 2018 -0700
@@ -135,7 +135,7 @@
 
         returns True if text is different than what is stored.
         """
-        return storageutil.filerevisiondifferent(self, node, text)
+        return not storageutil.filedataequivalent(self, node, text)
 
     def verifyintegrity(self, state):
         return self._revlog.verifyintegrity(state)