How to get Pokémon to respawn in Legends: Z-A?

Question

I knocked out a rooftop eevee :(

Comments

Don't you just wait at a bench?

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I do not wait at a bench

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with the reload door?

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What’s a reload door?

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I remember something about walking through a door in that building in wild zone 3 and it will reload stuff (also good for shiny hunting since shinies don't despawn) but I don't know how true that is