Ritch Hive respawning enemies

[Silversight]

I've been able to replicate this a few times with the same character.

Before completely exploring a floor of the Ritch Hive, enter a Hidden Vault. Clear it, then leave and finish exploring the level. If you enter that vault again and leave it, the map will be restored to how it was when you first entered the vault. This respawns enemies, replaces items and eggs, and restores chests.

I was able to replicate this on both Ritch Hive (1), and Ritch Hive (2), with a two different Hidden Vaults.

If there's any other information that I could give that would be helpful I'd be happy to.