use DDIM in hires fix is the sampler is PLMS

        shared.state.nextjob()

        self.sampler = sd_samplers.create_sampler(self.sampler_name, self.sd_model)

        img2img_sampler_name = self.sampler_name if self.sampler_name != 'PLMS' else 'DDIM'  # PLMS does not support img2img so we just silently switch ot DDIM

        self.sampler = sd_samplers.create_sampler(img2img_sampler_name, self.sd_model)

        samples = samples[:, :, self.truncate_y//2:samples.shape[2]-(self.truncate_y+1)//2, self.truncate_x//2:samples.shape[3]-(self.truncate_x+1)//2]