Companion for paritytech/polkadot#4712 (#901)

* Rename ParentIsDefault to ParentIsAllZeroes

* Fixes

* Create ParentAccounts for respective networks

* Fixes

* Use b"Parent" as the basis for generating parent AccountId

* Fixes

* Use preset parent account ID

* update lockfile for {"polkadot"}

Co-authored-by: parity-processbot <>

parachain-template/runtime/src/lib.rs

@@ -50,7 +50,7 @@ use polkadot_runtime_common::{BlockHashCount, RocksDbWeight, SlowAdjustingFeeUpd
 use xcm::latest::prelude::*;
 use xcm_builder::{
 	AccountId32Aliases, AllowTopLevelPaidExecutionFrom, AllowUnpaidExecutionFrom, CurrencyAdapter,
-	EnsureXcmOrigin, FixedWeightBounds, IsConcrete, LocationInverter, NativeAsset, ParentIsDefault,
+	EnsureXcmOrigin, FixedWeightBounds, IsConcrete, LocationInverter, NativeAsset, ParentIsPreset,
 	RelayChainAsNative, SiblingParachainAsNative, SiblingParachainConvertsVia,
 	SignedAccountId32AsNative, SignedToAccountId32, SovereignSignedViaLocation, TakeWeightCredit,
 	UsingComponents,
@@ -395,8 +395,8 @@ parameter_types! {
 /// when determining ownership of accounts for asset transacting and when attempting to use XCM
 /// `Transact` in order to determine the dispatch Origin.
 pub type LocationToAccountId = (
-	// The parent (Relay-chain) origin converts to the default `AccountId`.
-	ParentIsDefault<AccountId>,
+	// The parent (Relay-chain) origin converts to the parent `AccountId`.
+	ParentIsPreset<AccountId>,
 	// Sibling parachain origins convert to AccountId via the `ParaId::into`.
 	SiblingParachainConvertsVia<Sibling, AccountId>,
 	// Straight up local `AccountId32` origins just alias directly to `AccountId`.