fix: correct dpm++2s_a second model call#1435
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leejet merged 1 commit intoleejet:masterfrom Apr 18, 2026
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The second model call should use the sigma at the midpoint, not the next sigma; see e.g:
https://github.com/crowsonkb/k-diffusion/blob/v0.1.1.post1/k_diffusion/sampling.py#L534