Merge pull request 'Fix bug in Orchard witness calculation' (#80) from rav001 into dev040

Reviewed-on: #80

librustzcash-wrapper/src/lib.rs

@@ -1562,6 +1562,7 @@ pub extern "C" fn rust_wrapper_update_orchard_witness(
                 let n = MerkleHashOrchard::from_cmx(&orchard_note_comm.unwrap());
                 iw.append(n);
             }
+    }
     let mut out_bytes: Vec<u8> = Vec::new();
     let result = write_incremental_witness(&iw, &mut out_bytes);
     match result {
@@ -1574,7 +1575,6 @@ pub extern "C" fn rust_wrapper_update_orchard_witness(
             marshall_to_haskell_var(&h0, out, out_len, RW);
             }
     }
-    }
 }
 
 #[no_mangle]