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-rw-r--r--utils/merkletrie/filesystem/node.go4
1 files changed, 4 insertions, 0 deletions
diff --git a/utils/merkletrie/filesystem/node.go b/utils/merkletrie/filesystem/node.go
index 6c91f44..3380062 100644
--- a/utils/merkletrie/filesystem/node.go
+++ b/utils/merkletrie/filesystem/node.go
@@ -50,6 +50,10 @@ func NewRootNode(
// difftree algorithm will detect changes in the contents of files and also in
// their mode.
//
+// Please note that the hash is calculated on first invocation of Hash(),
+// meaning that it will not update when the underlying file changes
+// between invocations.
+//
// The hash of a directory is always a 24-bytes slice of zero values
func (n *node) Hash() []byte {
if n.hash == nil {