Multisig. XCM from pure proxy. Can't approve via Polkadot Vault - wrong QR

[stepanLav]

Description

When user try to sign multisig operation, generated by pure proxy from multisig wallet - Can't submit approve operation.
QR code is invalid.

Test Data

Operation:

Signed operation:

Steps to Reproduce

1. Create Multisig with one signatory as Polkadot Vault
2. Create pure proxy for that multisig
3. Create XCM operation from proxy via this multisig
4. Go to operations and try to sign with Polkadot Vault signatory

Expected Behavior

Succesfully signed

Actual Behavior

error: QR code is invalid.

Environment

4541076