diff -r 4dca422d3907 -r 6bfa6c2c5f15 mercurial/pure/parsers.py
--- a/mercurial/pure/parsers.py	Tue May 04 01:49:37 2021 +0200
+++ b/mercurial/pure/parsers.py	Mon May 03 18:41:51 2021 +0200
@@ -315,12 +315,10 @@
             self._extra[rev - self._lgt] = new
 
     def _unpack_entry(self, data):
-        return self.index_format.unpack(data) + (
-            revlog_constants.COMP_MODE_INLINE,
-        )
+        return self.index_format.unpack(data)
 
     def _pack_entry(self, entry):
-        return self.index_format.pack(*entry[:10])
+        return self.index_format.pack(*entry[:11])
 
     def entry_binary(self, rev):
         """return the raw binary string representing a revision"""