diff -r c30ca163b45e -r 2813d406b036 mercurial/configitems.py
--- a/mercurial/configitems.py	Sat Aug 07 14:12:28 2021 +0200
+++ b/mercurial/configitems.py	Sat Aug 07 16:51:47 2021 +0200
@@ -1892,6 +1892,11 @@
     default=True,
     alias=[(b'format', b'aggressivemergedeltas')],
 )
+coreconfigitem(
+    b'storage',
+    b'revlog.issue6528.fix-incoming',
+    default=True,
+)
 # experimental as long as rust is experimental (or a C version is implemented)
 coreconfigitem(
     b'storage',