diff --git a/.github/workflows/assign-to-project.yml b/.github/workflows/assign-to-project.yml
index b2bc8ece..fe6bb59e 100644
--- a/.github/workflows/assign-to-project.yml
+++ b/.github/workflows/assign-to-project.yml
@@ -11,7 +11,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: alex-page/github-project-automation-plus@v0.2.4
+        if: github.event_name == 'issues' && github.event.action == 'opened'
         with:
           project: Zebra
           column: To Do
           repo-token: ${{ secrets.PROJECT_AUTOMATION }}
+      - uses: alex-page/github-project-automation-plus@v0.2.4
+        if: github.event_name == 'pull_request' && github.event.action == 'opened'
+        with:
+          project: Zebra
+          column: In progress
+          repo-token: ${{ secrets.PROJECT_AUTOMATION }}
diff --git a/zebra-chain/src/keys/sapling.rs b/zebra-chain/src/keys/sapling.rs
index c1c8359f..10371a74 100644
--- a/zebra-chain/src/keys/sapling.rs
+++ b/zebra-chain/src/keys/sapling.rs
@@ -23,12 +23,12 @@ use std::{
 
 use bech32::{self, FromBase32, ToBase32};
 use rand_core::{CryptoRng, RngCore};
-use redjubjub::{self, SpendAuth};
 
 #[cfg(test)]
 use proptest_derive::Arbitrary;
 
 use crate::{
+    redjubjub::{self, SpendAuth},
     serialization::{ReadZcashExt, SerializationError},
     Network,
 };
diff --git a/zebra-chain/src/lib.rs b/zebra-chain/src/lib.rs
index afc8d081..5a733ef5 100644
--- a/zebra-chain/src/lib.rs
+++ b/zebra-chain/src/lib.rs
@@ -21,6 +21,7 @@ pub mod serialization;
 pub mod transaction;
 pub mod types;
 
+pub use ed25519_zebra;
 pub use redjubjub;
 
 #[cfg(test)]
diff --git a/zebra-chain/src/transaction/joinsplit.rs b/zebra-chain/src/transaction/joinsplit.rs
index f3bfaf7a..b95a92f3 100644
--- a/zebra-chain/src/transaction/joinsplit.rs
+++ b/zebra-chain/src/transaction/joinsplit.rs
@@ -1,7 +1,7 @@
 #[cfg(test)]
 use proptest::{array, collection::vec, prelude::*};
 
-use crate::{notes::sprout, proofs::ZkSnarkProof};
+use crate::{ed25519_zebra, notes::sprout, proofs::ZkSnarkProof};
 
 /// A _JoinSplit Description_, as described in [protocol specification §7.2][ps].
 ///