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Backport #6304 to stable2412 #6470

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Backporting the new V5 ExecuteWithOrigin instruction to stable2412

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This pull request is amending an existing release. Please proceed with extreme caution,
as to not impact downstream teams that rely on the stability of it. Some things to consider:

  • Backports are only for 'patch' or 'minor' changes. No 'major' or other breaking change.
  • Should be a legit fix for some bug, not adding tons of new features.
  • Must either be already audited or not need an audit.
Emergency Bypass

If you really need to bypass this check: add validate: false to each crate
in the Prdoc where a breaking change is introduced. This will release a new major
version of that crate and all its reverse dependencies and basically break the release.

Added `ExecuteWithOrigin` instruction according to the old XCM RFC 38:
polkadot-fellows/xcm-format#38.

This instruction allows you to descend or clear while going back again.

- [x] Implementation
- [x] Unit tests
- [x] Integration tests
- [x] Benchmarks
- [x] PRDoc

Modify `WithComputedOrigin` barrier to allow, for example, fees to be
paid with a descendant origin using this instruction.

---------

Signed-off-by: Adrian Catangiu <[email protected]>
Co-authored-by: Adrian Catangiu <[email protected]>
Co-authored-by: Andrii <[email protected]>
Co-authored-by: Branislav Kontur <[email protected]>
Co-authored-by: Joseph Zhao <[email protected]>
Co-authored-by: Nazar Mokrynskyi <[email protected]>
Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: Shawn Tabrizi <[email protected]>
Co-authored-by: command-bot <>
@franciscoaguirre franciscoaguirre added the T6-XCM This PR/Issue is related to XCM. label Nov 13, 2024
@franciscoaguirre franciscoaguirre self-assigned this Nov 13, 2024
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