mercurial/repoview.py

--- a/mercurial/repoview.py	Tue Nov 05 14:21:47 2019 -0800
+++ b/mercurial/repoview.py	Tue Nov 05 14:22:25 2019 -0800
@@ -307,6 +307,12 @@
                 )
             return r
 
+        def node(self, rev):
+            """filtered version of revlog.node"""
+            if rev in self.filteredrevs:
+                raise error.FilteredIndexError(rev)
+            return super(filteredchangelog, self).node(rev)
+
     cl.__class__ = filteredchangelog
 
     return cl