Bug: Metamask simulation TX return error "maxFeePerGas must be non-zero"

[zzzckck]

System information

Geth version: v1.4.8
OS & Version: Windows/Linux/OSX
Commit hash : f5ba30e

Expected behaviour

Metamask should not show warning on their page.

Actual behaviour

there is a warning in Metamask for BSC.

Steps to reproduce the behaviour

Step#1.connect metamask to pancake or other DApp with BSC network
https://pancakeswap.finance/swap?chain=bsc
Step#2.try swap

Step#3.after confirm, there would be warning shown in Metamask by this tool: https://www.blockaid.io/

Backtrace

No backtrace, but some error log printed in chromium console:

Error: simulation: fallback: (code: -32603, message: , data: Some(Object {"cause": Null, "code": Number(-32000), "message": String("maxFeePerGas must be non-zero")}))

Seems like there is some issue with maxFeePerGas and maxPriorityFeePerGas, both are 0, but actually BSC accept zero gas price right now.