--- a/mercurial/dirstateutils/docket.py	Fri Jul 16 14:08:26 2021 +0200
+++ b/mercurial/dirstateutils/docket.py	Fri Jul 16 16:19:31 2021 +0200
@@ -16,7 +16,7 @@
 
 # Must match the constant of the same name in
 # `rust/hg-core/src/dirstate_tree/on_disk.rs`
-TREE_METADATA_SIZE = 40
+TREE_METADATA_SIZE = 44
 
 # * 12 bytes: format marker
 # * 32 bytes: node ID of the working directory's first parent