src/Sp/FixtureDumper/Generator/DefaultNamingStrategy.php
public function modelName($model, ClassMetadata $metadata)
    {
        $identifiers = $metadata->getIdentifierValues($model);
        $className = lcfirst(ClassUtils::getClassName($metadata->getName()));

        return $className . implode('_', $identifiers);
    }
public function modelName($model, ClassMetadata $metadata)
    {
        $identifiers = $metadata->getIdentifierValues($model);
        $className = lcfirst(ClassUtils::getClassName($metadata->getName()));

        return $className . implode('_', $identifiers);
    }
{@inheritdoc}