Re-introduce latent blending step from the vanilla inpainting procedure.

        samples = self.sampler.sample_img2img(self, self.init_latent, x, conditioning, unconditional_conditioning, image_conditioning=self.image_conditioning)

        if self.mask is not None and self.soft_inpainting is None:

            samples = samples * self.nmask + self.init_latent * self.mask

        del x

        devices.torch_gc()