add default metadata during migration

x/ccv/provider/migrations/v8/migrations.go

@@ -247,8 +247,20 @@ func MigrateLaunchedConsumerChains(ctx sdk.Context, store storetypes.KVStore, pk
 		// set ownership -- all existing chains are owned by gov
 		pk.SetConsumerOwnerAddress(ctx, consumerId, pk.GetAuthority())
 
-		// Note: ConsumerMetadata will be populated in the upgrade handler
-		// Note: InitializationParameters is not needed since the chain is already launched
+		// Note: ConsumerMetadata will be populated in the upgrade handler.
+		// Still, add some default values as every chain should have the metadata set.
+		if err := pk.SetConsumerMetadata(ctx, consumerId, providertypes.ConsumerMetadata{
+			Name:        chainId,
+			Description: "TBA",
+			Metadata:    "TBA",
+		}); err != nil {
+			return err
+		}
+		// Note: InitializationParameters are not needed since the chain is already launched.
+		// Just add the default values.
+		if err := pk.SetConsumerInitializationParameters(ctx, consumerId, providertypes.ConsumerInitializationParameters{}); err != nil {
+			return err
+		}
 
 		// migrate power shaping params
 		topNKey := providertypes.StringIdWithLenKey(LegacyTopNKeyPrefix, chainId)