Make changes according to #17 PR review

Author: dmidem

zebra-chain/src/orchard/orchard_flavor_ext.rs

@@ -39,13 +39,13 @@ pub trait OrchardFlavorExt: Clone + Debug {
     type BurnType: Clone + Debug + Default + ZcashDeserialize + ZcashSerialize;
 }
 
-/// A structure representing a tag for Orchard protocol variant used for the transaction version `V5`.
+/// A structure representing a tag for Orchard protocol variant used for the transaction version 5.
 #[derive(Clone, Debug, PartialEq, Eq, Serialize)]
 #[cfg_attr(any(test, feature = "proptest-impl"), derive(Arbitrary))]
 pub struct OrchardVanilla;
 
-/// A structure representing a tag for Orchard protocol variant used for the transaction version `V6`
-/// (which ZSA features support).
+/// A structure representing a tag for Orchard protocol variant used for the transaction version 6
+/// (which support for ZSAs).
 #[cfg(feature = "tx-v6")]
 #[derive(Clone, Debug, PartialEq, Eq, Serialize)]
 #[cfg_attr(any(test, feature = "proptest-impl"), derive(Arbitrary))]

zebra-chain/src/orchard_zsa/issuance.rs

@@ -189,8 +189,7 @@ impl ZcashDeserialize for IssueAction {
 
 impl TrustedPreallocate for IssueAction {
     fn max_allocation() -> u64 {
-        // FIXME: impl correct calculation
-        10
+        (MAX_BLOCK_BYTES - 1) / 3
     }
 }