composable runtime xcm barrier. to enable notification from relay (LSD)

code/parachain/runtime/composable/src/xcmp.rs

@@ -84,25 +84,29 @@ impl<ResponseHandler: OnResponse> ShouldExecute
 		max_weight: Weight,
 		weight_credit: &mut Weight,
 	) -> Result<(), ProcessMessageError> {
-		for i in instructions.iter_mut() {
-			if let QueryResponse { ref mut querier, .. } = i {
-				if querier.is_none() {
-					//need this line because querier is None
-					//and here is where it failed in pallet-xcm
-					//https://github.com/paritytech/polkadot/blob/release-v0.9.43/xcm/pallet-xcm/src/lib.rs#L2001-L2010
-					//so need to substitute it with expected querier
-					*querier = Some(MultiLocation { parents: 0, interior: Here });
-				}
-			}
-		}
-
-		AllowKnownQueryResponses::<ResponseHandler>::should_execute(
+		let result = AllowKnownQueryResponses::<ResponseHandler>::should_execute(
 			origin,
 			instructions,
 			max_weight,
 			weight_credit,
-		)?;
-		Ok(())
+		);
+
+		if result.is_err() {
+			for i in instructions.iter_mut() {
+				if let QueryResponse { query_id, .. } = i {
+					let is_asked_by_lsd =
+						pallet_liquid_staking::pallet::XcmRequests::<Runtime>::contains_key(
+							query_id,
+						);
+
+					if is_asked_by_lsd {
+						return Ok(())
+					}
+					//https://github.com/paritytech/polkadot/blob/release-v0.9.43/xcm/pallet-xcm/src/lib.rs#L2001-L2010
+				}
+			}
+		}
+		result
 	}
 }