[MC-179369] Wandering Traders are always invisible in the Nether and the End

When a wandering trader is in the Nether or the End, it is always invisible. This might be intended.

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Dude, they drink Invisibility potions when they feel like they are in danger

They drink Invisibilty potion when it turns night. The nether has no day or night so it's a bit weird.

Confirmed for 20w18a. They always drink an invisibility potion independently on the daytime in these dimensions.

A potential fix should be that the wandering trader still follows the day-night cycle, even if they're not in the overworld.