--- a/hgext/narrow/narrowcommands.py	Sun Aug 01 10:57:21 2021 -0400
+++ b/hgext/narrow/narrowcommands.py	Mon Aug 02 08:05:13 2021 -0400
@@ -289,7 +289,7 @@
                 repair.strip(ui, unfi, tostrip, topic=b'narrow', backup=backup)
 
         todelete = []
-        for t, f, f2, size in repo.store.datafiles():
+        for t, f, size in repo.store.datafiles():
             if f.startswith(b'data/'):
                 file = f[5:-2]
                 if not newmatch(file):