Reappearing on World spawn after exiting an planarium inside a planarium

[stark cave]

On Version 5.11.2 if you enter a planarium, placed inside a planarium, and leave this planarium you won't reappear inside the first planarium or the place where you entered the first planarium but you reappear at World spawn, wich I think is strange

[paper arrow]

This is intended as a mechanism to prevent players from getting trapped in planariums. Otherwise it would be possible to be stuck by entering a planarium, entering another planarium, and then entering the first planarium again.