position hold below specific duty cycle

Hi, I'm trying to modify firmware to hold position of motor when duty cycle is below 10%.(FOC with AS5047)

I am a mechanical engineer, so I'm not sure where to begin.

First, I cloned original bldc folder.

From mcpwm_foc.c 

Original code

changed to

void mcpwm_foc_set_duty(float dutyCycle) {
    if(dutyCycle >0.1){
        get_motor_now()->m_control_mode = CONTROL_MODE_DUTY;
        get_motor_now()->m_duty_cycle_set = dutyCycle;
        
    }
    else{

        get_motor_now()->m_control_mode = CONTROL_MODE_POS;
        get_motor_now()->m_pos_pid_set = 0;
    }

    if (get_motor_now()->m_state != MC_STATE_RUNNING) {
        get_motor_now()->m_motor_released = false;
        get_motor_now()->m_state = MC_STATE_RUNNING;
    }
}

Build and Upload new .HEX file via VESC Tool but it motor runs below 10% duty cycle.

Any suggestions where to fix?

Thanks.