ExtrinsicSuccess reports wrong weight consumption

[ggwpez]

Observation

The weight that ExtrinsicSuccess reports does not contain the ExtrinsicBaseWeight.
Example output from PolkadotJS after setting System.Remark weight to 0:

This should report the ExtrinsicBaseWeight of ~86µs but just shows 0 instead.
The System::extract_actual_weight does not account for this. It is being respected in check_block_weight and also in the fee logic, so more of a "cosmetic" issue. Querying System.BlockWeight also reports the correct value.

Thanks to @notlesh for bringing attention to this.