--- a/hgext/fsmonitor/__init__.py	Tue Aug 01 21:03:25 2017 +0900
+++ b/hgext/fsmonitor/__init__.py	Wed Jul 26 22:10:15 2017 +0900
@@ -394,7 +394,7 @@
             visit.update(f for f in copymap
                          if f not in results and matchfn(f))
 
-    audit = pathutil.pathauditor(self._root).check
+    audit = pathutil.pathauditor(self._root, cached=True).check
     auditpass = [f for f in visit if audit(f)]
     auditpass.sort()
     auditfail = visit.difference(auditpass)