Why does function GetEVM set the balance of from address to MaxBig256?

Question

As you can see in this line,

func (b *LesApiBackend) GetEVM(ctx context.Context, msg core.Message, state *state.StateDB, header *types.Header) (*vm.EVM, func() error, error) {
    state.SetBalance(msg.From(), math.MaxBig256)
    context := core.NewEVMContext(msg, header, b.eth.blockchain, nil)
    return vm.NewEVM(context, state, b.eth.chainConfig, vm.Config{}), state.Error, nil
}

The GetEVM function has a side-effect that sets the balance of from address to MaxBig256. What's the logic behind it?

Answer 1

This is only the temporary EVM for running tnx to get the value then it doesn't make and changes in the state/blockchain