I have tried to get children of Great Britain and I get unfiltered rows of all DB.
$geo = geo::getCountry('gb')->children()->orderby('name')->get();
foreach ($geo as $g) echo $g->name . "<br>";
Output
Adamaoua Region
Adazu Novads
Agadez
Aizkraukles novads
Al Bahah Region
Al Bayda Governorate
Al Jawf Region
Al-Qassim Region
Alagoas
Alaska
Alibori
...............
I have tried to get children of Great Britain and I get unfiltered rows of all DB.
Output