Truncate on PgSQL without resetting identity

[Kamhal24]

Helo, I'm using Foundry to build my Fixtures in Symfony app, but the purge-with-truncate option does not reset autoincremented id.
I dig a bit and found, that I have to truncate with RESTART IDENTITY. Dug a bit deeper and find out, that PgPlatform has this piece of code

public function getTruncateTableSQL($tableName, $cascade = false)
{
    $tableIdentifier = new Identifier($tableName);
    $sql             = 'TRUNCATE ' . $tableIdentifier->getQuotedName($this);

    if ($cascade) {
        $sql .= ' CASCADE';
    }

    return $sql;
}

So no option to set restart|continue identity.
Am I missing something, or is it really missing in the code and should be there?
I really hate the idea to write custom decorator over vendor package :)

Thank you in advance
BR Kamhal