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@@ -89,6 +89,10 @@ Reference names are an uninterpreted sequence of bytes that must pass
[ref-fmt]: https://git-scm.com/docs/git-check-ref-format
+### Key unicity
+
+Each entry must have a unique key; repeated keys are disallowed.
+
### Network byte order
All multi-byte, fixed width fields are in network byte order.