diff -r e83327af26f1 -r c3773636ddbb mercurial/localrepo.py
--- a/mercurial/localrepo.py	Tue Mar 02 18:51:18 2021 +0100
+++ b/mercurial/localrepo.py	Wed Mar 03 12:33:24 2021 +0100
@@ -944,9 +944,8 @@
     """Construct a storage object for a repository."""
     if b'store' in requirements:
         if b'fncache' in requirements:
-            return storemod.fncachestore(
-                path, vfstype, b'dotencode' in requirements
-            )
+            dotencode = requirementsmod.DOTENCODE_REQUIREMENT in requirements
+            return storemod.fncachestore(path, vfstype, dotencode)
 
         return storemod.encodedstore(path, vfstype)
 
@@ -1215,7 +1214,7 @@
         b'fncache',
         requirementsmod.SHARED_REQUIREMENT,
         requirementsmod.RELATIVE_SHARED_REQUIREMENT,
-        b'dotencode',
+        requirementsmod.DOTENCODE_REQUIREMENT,
         requirementsmod.SPARSE_REQUIREMENT,
         requirementsmod.INTERNAL_PHASE_REQUIREMENT,
     }
@@ -3416,7 +3415,7 @@
         if ui.configbool(b'format', b'usefncache'):
             requirements.add(b'fncache')
             if ui.configbool(b'format', b'dotencode'):
-                requirements.add(b'dotencode')
+                requirements.add(requirementsmod.DOTENCODE_REQUIREMENT)
 
     compengines = ui.configlist(b'format', b'revlog-compression')
     for compengine in compengines: