Skeleton Pony Glitch

There is a minor glitch with the skeleton ponies, i have been collecting ponies and now have 6 skeleton ponies. While out i found 2 more, i /zh claimed them and they named themselves Pontya & Grispoil, which sadly are the names of 2 of my original skeleton ponies, so i cant call them back home /zh here Pontya as that defaults to the original pony.

Now nintendo renamed the ponies in the field to test & Testy and i tried to call them that didnt work either. To my knowledge you cant spawn...

Skeleton Pony Glitch