bip360 test vectors: non-standard leaf version should be allowed during construction of P2MR output (#46)

bip-0360/ref-impl/common/tests/data/p2mr_construction.json

@@ -57,7 +57,7 @@
         },
         {
             "id": "p2mr_different_version_leaves",
-            "objective": "Tests P2MR with two script leaves of different versions.  TO-DO:  currently ignores given leaf version and over-rides.  Probably better to throw error",
+            "objective": "Tests P2MR with two script leaves of different versions. An unknown leaf version should be accepted and the P2MR output constructed successfully.",
             "given": {
                 "scriptTree": [
                     {

bip-0360/ref-impl/rust/tests/p2mr_construction.rs

@@ -65,6 +65,9 @@ fn test_p2mr_single_leaf_script_tree() {
     process_test_vector_p2mr(test_vector).unwrap();
 }
 
+/// Verifies that P2MR construction succeeds when leaves carry non-standard leaf versions (e.g. 0xfa).
+/// Unknown leaf versions are accepted: the TapLeaf hash is computed using the supplied version,
+/// and the resulting merkle root and control blocks are valid.
 #[test]
 fn test_p2mr_different_version_leaves() {
 

bip-0360/ref-impl/rust/tests/p2mr_pqc_construction.rs

@@ -52,6 +52,9 @@ fn test_p2mr_pqc_single_leaf_script_tree() {
     process_test_vector_p2mr(test_vector).unwrap();
 }
 
+/// Verifies that P2MR construction succeeds when leaves carry non-standard leaf versions (e.g. 0xfa).
+/// Unknown leaf versions are accepted: the TapLeaf hash is computed using the supplied version,
+/// and the resulting merkle root and control blocks are valid.
 #[test]
 fn test_p2mr_pqc_different_version_leaves() {