Total fee amount returened by the node is set to 0 (both wei and decimal amount).
But the fee is charged correctly and the orchFee and gasFee components are correct.
Example supertx:
https://mee-node.biconomy.io/v1/explorer/0x74e66096ada9c4bc49d90795f9a8e82f102c8fb80d8431b553ab9079c0d46beb