derive(Copy) on SaplingNoteTreeRootHash
@@ -31,7 +31,7 @@ pub struct SaplingNoteCommitmentTree;
/// commitment tree corresponding to the final Sapling treestate of
/// this block. A root of a note commitment tree is associated with
/// each treestate.
-#[derive(Clone, Debug, Default, Eq, PartialEq)]
+#[derive(Clone, Copy, Debug, Default, Eq, PartialEq)]
#[cfg_attr(test, derive(Arbitrary))]
pub struct SaplingNoteTreeRootHash(pub [u8; 32]);
