Utility.batch_all wrapped in Proxy is not transactional

[mclyk]

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Description of bug

In this PR: #11431,
the macro #[transactional] has been removed from 'utility.batch_all', it works good normally, however if it's wrapped in Proxy.proxy, there is an issue:

suppose a transaction like this:
Proxy.proxy<Utility.batch_all<call1,call2,call3>>

• call1: system. remarkWithEvent
• call2: balance.transfer(1 trillion)
• call3: system. remarkWithEvent

if send this transaction to on-chain, call2 failed but call1 success.

Steps to reproduce

on-chain proxy transaction:

https://polkadot.js.org/apps/?rpc=wss://rpc.polkadot.io#/explorer/query/0xfe8aded7fc1380da895e90d046acf55c6e51fe0939c0b8b93d9c477156a97931

https://polkadot.polkaholic.io/tx/0xb437c0237cba48e4eec12dffbe19bdec9305c5df7a4365f861f8c1303b664436

[shawntabrizi]

Assuming you are on the latest master, these kinds of issues should be resolved starting here: #11927

[mclyk]

Got it, thanks.