The backfill wrote the snapshot it took before fetchModelOverrides resolved, so
a save or a forget during that round trip was undone: the write is queued behind
the interactive one and commits last, leaving the browser showing the new
settings while an API load applied the old ones. Each write now re-reads the
model's current local config and skips it if it has gone or gone back to
defaults. Verified against the real module under node: the write carries
maxSeqLength 9999 where it previously carried the stale 1000.
target.isGguf was also standing in for "an API request can load this". It
cannot for an Ollama model: local_model_resolver skips Ollama's scanner on
purpose, so those models are never in the auto-switch index, yet the mirror ran
and the settings page told the user the API would apply them. The target now
carries apiLoadable, set from the inventory source the row already has, and both
the mirror and that sentence read it.
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