--- a/mercurial/manifest.py	Tue Feb 23 17:22:51 2016 -0800
+++ b/mercurial/manifest.py	Tue Feb 09 20:22:33 2016 -0800
@@ -639,7 +639,6 @@
 
     def setflag(self, f, flags):
         """Set the flags (symlink, executable) for path f."""
-        assert 't' not in flags
         self._load()
         dir, subpath = _splittopdir(f)
         if dir: