Unexpected dropdowns

After searching for Serbia in country list ("ser" actually), I noticed some weird dropdowns that function unexpectedly.

Here's the image, but it's better to try it yourself.



Edit: Looks like, by searching the word "ser", the output spits Seriphos as it contains the word "ser". Seriphos is under Cyclades which is under Greece (ancient). There were never any unexpected dropdowns. They are just a bit buggy when dealing with queries.