Creatures such as the Deva, Couatl and Oni have an ability which lets them magically polymorph into a humanoid, stating that they keep their statistics (other than ones listed as changing). Does this mean they keep their type (Celestial or Giant, in the above examples), and as such would not be affected by spells such as Charm/Hold Person or Crown of Madness (which specifically list Humanoids as their targets), or would their type become Humanoid for the duration of the transformation, and therefore they would be affected by these spells?
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