--- a/mercurial/store.py	Sun Jan 17 19:22:30 2021 +0100
+++ b/mercurial/store.py	Sun Jan 17 20:27:59 2021 +0100
@@ -389,7 +389,11 @@
 
 
 def isrevlog(f, kind, st):
-    return kind == stat.S_IFREG and f[-2:] in (b'.i', b'.d', b'.n', b'.nd')
+    if kind != stat.S_IFREG:
+        return False
+    if f[-2:] in (b'.i', b'.d', b'.n'):
+        return True
+    return f[-3:] == b'.nd'
 
 
 class basicstore(object):

--- a/tests/test-persistent-nodemap.t	Sun Jan 17 19:22:30 2021 +0100
+++ b/tests/test-persistent-nodemap.t	Sun Jan 17 20:27:59 2021 +0100
@@ -708,9 +708,11 @@
   adding [s] 00manifest.n (70 bytes)
   adding [s] 00manifest.i (313 KB)
   adding [s] 00manifest.d (452 KB)
+  adding [s] 00manifest-*.nd (118 KB) (glob)
   adding [s] 00changelog.n (70 bytes)
   adding [s] 00changelog.i (313 KB)
   adding [s] 00changelog.d (360 KB)
+  adding [s] 00changelog-*.nd (118 KB) (glob)
   $ ls -1 stream-clone/.hg/store/ | egrep '00(changelog|manifest)(\.n|-.*\.nd)'
   00changelog-*.nd (glob)
   00changelog.n