xcm: fix local/remote exports when inner routers return NotApplicable (#6645)

This PR addresses two small fixes:  

1. Fixed a typo ("as as") found on the way.  
2. Resolved a bug in the `local/remote exporters` used for bridging.
Previously, they consumed `dest` and `msg` without returning them when
inner routers/exporters failed with `NotApplicable`. This PR ensures
compliance with the
[`SendXcm`](https://github.com/paritytech/polkadot-sdk/blob/master/polkadot/xcm/src/v5/traits.rs#L449-L450)
and
[`ExportXcm`](https://github.com/paritytech/polkadot-sdk/blob/master/polkadot/xcm/xcm-executor/src/traits/export.rs#L44-L45)
traits.

---------

Co-authored-by: GitHub Action <[email protected]>

Author: bkontur

polkadot/grafana/README.md

@@ -90,4 +90,4 @@ and issue statement or initiate dispute.
 - **Assignment delay tranches**. Approval voting is designed such that validators assigned to check a specific
 candidate are split up into equal delay tranches (0.5 seconds each). All validators checks are ordered by the delay
 tranche index. Early tranches of validators have the opportunity to check the candidate first before later tranches
-that act as as backups in case of no shows.
+that act as backups in case of no shows.

polkadot/grafana/parachains/status.json

@@ -1405,7 +1405,7 @@
         "type": "prometheus",
         "uid": "$data_source"
       },
-      "description": "Approval voting requires that validators which are assigned to check a specific \ncandidate are split up into delay tranches (0.5s each). Then, all validators checks are ordered by the delay \ntranche index. Early tranches of validators will check the candidate first and later tranches act as as backups in case of no shows.",
+      "description": "Approval voting requires that validators which are assigned to check a specific \ncandidate are split up into delay tranches (0.5s each). Then, all validators checks are ordered by the delay \ntranche index. Early tranches of validators will check the candidate first and later tranches act as backups in case of no shows.",
       "gridPos": {
         "h": 9,
         "w": 18,

polkadot/xcm/src/v3/traits.rs

@@ -547,13 +547,13 @@ impl SendXcm for Tuple {
 }
 
 /// Convenience function for using a `SendXcm` implementation. Just interprets the `dest` and wraps
-/// both in `Some` before passing them as as mutable references into `T::send_xcm`.
+/// both in `Some` before passing them as mutable references into `T::send_xcm`.
 pub fn validate_send<T: SendXcm>(dest: MultiLocation, msg: Xcm<()>) -> SendResult<T::Ticket> {
 	T::validate(&mut Some(dest), &mut Some(msg))
 }
 
 /// Convenience function for using a `SendXcm` implementation. Just interprets the `dest` and wraps
-/// both in `Some` before passing them as as mutable references into `T::send_xcm`.
+/// both in `Some` before passing them as mutable references into `T::send_xcm`.
 ///
 /// Returns either `Ok` with the price of the delivery, or `Err` with the reason why the message
 /// could not be sent.

polkadot/xcm/src/v4/traits.rs

@@ -289,13 +289,13 @@ impl SendXcm for Tuple {
 }
 
 /// Convenience function for using a `SendXcm` implementation. Just interprets the `dest` and wraps
-/// both in `Some` before passing them as as mutable references into `T::send_xcm`.
+/// both in `Some` before passing them as mutable references into `T::send_xcm`.
 pub fn validate_send<T: SendXcm>(dest: Location, msg: Xcm<()>) -> SendResult<T::Ticket> {
 	T::validate(&mut Some(dest), &mut Some(msg))
 }
 
 /// Convenience function for using a `SendXcm` implementation. Just interprets the `dest` and wraps
-/// both in `Some` before passing them as as mutable references into `T::send_xcm`.
+/// both in `Some` before passing them as mutable references into `T::send_xcm`.
 ///
 /// Returns either `Ok` with the price of the delivery, or `Err` with the reason why the message
 /// could not be sent.

polkadot/xcm/src/v5/traits.rs

@@ -502,13 +502,13 @@ impl SendXcm for Tuple {
 }
 
 /// Convenience function for using a `SendXcm` implementation. Just interprets the `dest` and wraps
-/// both in `Some` before passing them as as mutable references into `T::send_xcm`.
+/// both in `Some` before passing them as mutable references into `T::send_xcm`.
 pub fn validate_send<T: SendXcm>(dest: Location, msg: Xcm<()>) -> SendResult<T::Ticket> {
 	T::validate(&mut Some(dest), &mut Some(msg))
 }
 
 /// Convenience function for using a `SendXcm` implementation. Just interprets the `dest` and wraps
-/// both in `Some` before passing them as as mutable references into `T::send_xcm`.
+/// both in `Some` before passing them as mutable references into `T::send_xcm`.
 ///
 /// Returns either `Ok` with the price of the delivery, or `Err` with the reason why the message
 /// could not be sent.