A SAMPLER object is only the step function, so picking KSampler used to leave
the pass with no schedule at all unless a sigma list was typed by hand.
steps + schedule now build one from the loaded model's model_sampling, exactly
as ComfyUI's BasicScheduler does. The schedule dropdown is the switch between
the two sources rather than a silent precedence rule: "use_user_sigmas" — the
default, so nothing changes for an existing config — runs the Sigmas field as
typed, and any real scheduler computes instead, leaving the typed schedule
parked in the field to switch back to without retyping it. Studio logs the fact
that the field is being ignored, and steps is only shown while it applies.
Both frontends, same change.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>