Extrinsics root trie version mismatch

[tomaka]

https://github.com/tomaka/smoldot/blob/3bf730ff5eeecfa2d376637106a26b43d1c9d779/lib/src/header.rs#L123

https://github.com/paritytech/substrate/blob/ece92d6b30ee7f9fbda7a84bee76f8ff6d2c92a1/frame/transaction-storage/src/lib.rs#L203

I've realized this mismatch while brainstorming polkadot-fellows/RFCs#19

[tomaka]

It's not clear to me how watching transactions works at all right now. We're definitely supposed to check whether the body matches the extrinsics_root in the header.

[tomaka]

Ok I was wrong. The actual code is: https://github.com/paritytech/substrate/blob/ece92d6b30ee7f9fbda7a84bee76f8ff6d2c92a1/frame/system/src/lib.rs#L150