Deep-copy cached state

When cached data (e.g., row.settings) is used to initialize mutable UI state (forms, editors, draft objects), do not pass cached object references directly. Always deep-clone cached objects on entry to editable state to prevent unintended cache mutations and ensure copied/duplicated initialization is isolated.

Example pattern:

const settings = currentRow.settings
  ? structuredClone(currentRow.settings)
  : undefined;

// use `settings` as initial/editable state
const initialValues = {
  ...,
  settings,
};

If settings is nested, prefer structuredClone (or an equivalent deep-clone) over shallow spreads to guarantee full isolation.