Fix Uniques pallet's on-chain storage version (currently 0, but shoul…

…d be 1).

runtime/trappist/src/lib.rs

@@ -122,14 +122,39 @@ type EventRecord = frame_system::EventRecord<
 	<Runtime as frame_system::Config>::Hash,
 >;
 
+pub struct FixStorageVersions;
+
+impl frame_support::traits::OnRuntimeUpgrade for FixStorageVersions {
+	fn on_runtime_upgrade() -> Weight {
+		use frame_support::traits::{GetStorageVersion, StorageVersion};
+		use sp_runtime::traits::Saturating;
+
+		let mut writes = 0;
+
+		/// trappist-rococo runtime v.11000 has an incorrect on-chain storage version of 0 for the Uniques pallet
+		/// Set the Uniques pallet's storage version to 1 as expected.
+		if Uniques::on_chain_storage_version() == StorageVersion::new(0) {
+			Uniques::current_storage_version().put::<Uniques>();
+			writes.saturating_inc();
+		}
+
+		<Runtime as frame_system::Config>::DbWeight::get().reads_writes(4, writes)
+	}
+}
+
+pub type Migrations = (
+	pallet_contracts::Migration<Runtime>,
+	FixStorageVersions,
+);
+
 /// Executive: handles dispatch to the various modules.
 pub type Executive = frame_executive::Executive<
 	Runtime,
 	Block,
 	frame_system::ChainContext<Runtime>,
 	Runtime,
 	AllPalletsWithSystem,
-	pallet_contracts::Migration<Runtime>,
+	Migrations,
 >;
 
 impl_opaque_keys! {