If I warp an Exposure with a CoaddPsf, what happens to the Psf?

If I warp an exposure with a CoaddPsf, is the CoaddPsf correct after the warping is complete?

I very much doubt it. I don’t think there’s any special handling of Psfs (or anything other than maybe Wcss) when you warp an Exposure.

@jbosch is correct; the PSF is not affected by the current warping code.