Osaka's Max blobs per transactions new value is applied to before proper hardfork

[MqllR]

System information

Geth version: 1.16.3

Expected behaviour

Nothing should have changed before Osaka being activated. Max blobs per tx should remain at 7.

Actual behaviour

New limitation of 6 blobs is applied due to #32246 global param being used in the txpool validation.

Backtrace

Since the upgrade to 1.16.3 on Ethereum Sepolia, our L2 blob transactions get rejected with this error:

err=\"transaction blob limit exceeded: blob count 7, limit 6\""

[lightclient]

I think this is working as expected. It's good for rollups to begin migrating infra to only submit 6 blobs now instead of waiting for the fork boundary. 9 blob transactions were already very large for us to handle and we prefer to get this cap in early.

[MqllR]

Alright, the matter will be tackled asap but until then there is a risk for such transactions to struggle to get included with the adoption of geth > 1.16.2, no ?

[lightclient]

Correct.