Classes/Console/Service/Configuration/ConfigurationService.php
public function localIsActive($path)
    {
        if ($this->hasLocal($path)) {
            return $this->hasActive($path) && $this->getLocal($path) === $this->getActive($path);
        }

        return !$this->hasActive($path);
    }
public function localIsActive($path)
    {
        if ($this->hasLocal($path)) {
            return $this->hasActive($path) && $this->getLocal($path) === $this->getActive($path);
        }

        return !$this->hasActive($path);
    }
Returns true if the value is stored in the LocalConfiguration.php file and
is NOT overridden later (e.g. in AdditionalConfiguration.php)

@param string $path
@return bool