A local row carries a repo id only inside the HF cache: getLocalHubId
returns null unless the source is hf_cache. A plain folder of quants,
under the models dir, a custom folder or LM Studio, therefore has none,
while the backend still marks it as needing one, since requires_variant
is scan_path.is_dir(), and leaves format_variant null because a directory
is not the single-file case. settingsGgufVariantForRow then returns null,
the guard is entered, the lookup is skipped for want of an id, and the
toast is all that is left. The row menu offers Settings on every
non-dataset row, so for these folders it could never do anything.
The listing takes a path in that position and scans it, before the
repo-id validation that would otherwise reject one, and that is already
the request the on-device card makes: its fetch state is keyed on the
model id, which for a local row without a hub id is the load path. So
both surfaces now choose from the same quant set, and the settings key,
the row's load id, does not move.
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