From a9e4a0d7edc114d42b2f2cfb6ebeb3b24e19bb2b Mon Sep 17 00:00:00 2001
From: Xavier Lau <xavier@inv.cafe>
Date: Tue, 21 Mar 2023 17:59:42 +0800
Subject: [PATCH] Message root record should be updated correctly

---
 pallet/ecdsa-authority/src/lib.rs   | 1 +
 pallet/ecdsa-authority/src/tests.rs | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/pallet/ecdsa-authority/src/lib.rs b/pallet/ecdsa-authority/src/lib.rs
index 03d412c44..310c0fd23 100644
--- a/pallet/ecdsa-authority/src/lib.rs
+++ b/pallet/ecdsa-authority/src/lib.rs
@@ -403,6 +403,7 @@ pub mod pallet {
 
 			if Self::check_threshold(collected.len() as _, authorities.len() as _) {
 				<NewMessageRootToSign<T>>::kill();
+				<PreviousMessageRoot<T>>::kill();
 
 				let (commitment, message, collected) = new_message_root_to_sign;
 
diff --git a/pallet/ecdsa-authority/src/tests.rs b/pallet/ecdsa-authority/src/tests.rs
index c7c2b3453..21ee91522 100644
--- a/pallet/ecdsa-authority/src/tests.rs
+++ b/pallet/ecdsa-authority/src/tests.rs
@@ -474,6 +474,8 @@ fn submit_new_message_root_signature() {
 				signatures: vec![(a_1, s_1), (a_2, s_2)]
 			}]
 		);
+		assert!(EcdsaAuthority::new_message_root_to_sign().is_none());
+		assert!(EcdsaAuthority::previous_message_root().is_none());
 	});
 }