Use free asset ID as counterpart

Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>

bin/node/cli/src/chain_spec.rs

@@ -360,7 +360,7 @@ pub fn testnet_genesis(
 		vesting: Default::default(),
 		assets: pallet_assets::GenesisConfig {
 			// This asset is used by the NIS pallet as counterpart currency.
-			assets: vec![(0, get_account_id_from_seed::<sr25519::Public>("Alice"), true, 1)],
+			assets: vec![(9, get_account_id_from_seed::<sr25519::Public>("Alice"), true, 1)],
 			..Default::default()
 		},
 		transaction_storage: Default::default(),

bin/node/runtime/src/lib.rs

@@ -1477,7 +1477,7 @@ impl pallet_nis::Config for Runtime {
 	type Currency = Balances;
 	type CurrencyBalance = Balance;
 	type FundOrigin = frame_system::EnsureSigned<AccountId>;
-	type Counterpart = ItemOf<Assets, ConstU32<0u32>, AccountId>;
+	type Counterpart = ItemOf<Assets, ConstU32<9u32>, AccountId>;
 	type CounterpartAmount = WithMaximumOf<ConstU128<21_000_000_000_000_000_000u128>>;
 	type Deficit = ();
 	type IgnoredIssuance = IgnoredIssuance;

bin/node/testing/src/genesis.rs

@@ -89,7 +89,7 @@ pub fn config_endowed(code: Option<&[u8]>, extra_endowed: Vec<AccountId>) -> Gen
 		society: SocietyConfig { members: vec![alice(), bob()], pot: 0, max_members: 999 },
 		vesting: Default::default(),
 		assets: pallet_assets::GenesisConfig {
-			assets: vec![(0, alice(), true, 1)],
+			assets: vec![(9, alice(), true, 1)],
 			..Default::default()
 		},
 		transaction_storage: Default::default(),