From 098815948a23708431b6adc0ab048d19787a9ae0 Mon Sep 17 00:00:00 2001
From: Albrecht <14820950+weichweich@users.noreply.github.com>
Date: Tue, 2 Nov 2021 10:27:44 +0100
Subject: [PATCH] don't panic if already migrated (#10141)

* don't panic if already migrated

* remove condition
---
 substrate/frame/vesting/src/lib.rs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/substrate/frame/vesting/src/lib.rs b/substrate/frame/vesting/src/lib.rs
index 27862a5ca4..654723d009 100644
--- a/substrate/frame/vesting/src/lib.rs
+++ b/substrate/frame/vesting/src/lib.rs
@@ -181,7 +181,11 @@ pub mod pallet {
 	impl<T: Config> Hooks<BlockNumberFor<T>> for Pallet<T> {
 		#[cfg(feature = "try-runtime")]
 		fn pre_upgrade() -> Result<(), &'static str> {
-			migrations::v1::pre_migrate::<T>()
+			if StorageVersion::<T>::get() == Releases::V0 {
+				migrations::v1::pre_migrate::<T>()
+			} else {
+				Ok(())
+			}
 		}
 
 		fn on_runtime_upgrade() -> Weight {