useStore unwraps mutate boolean input type into conditions and infers never as data type for mutate

I have an issue when passing a boolean as the input type to a mutate query. https://codesandbox.io/p/sandbox/gpqr4r If you have a create mutate of a type that has multiple overloads (ie. boolean). ``` export const $publish = createMutatorStore<boolean>( async ({ data: published }) => { return fetch("/"); } ); ``` it gets turned into the union of types ```ts const mutate: ((data: false) => Promise<unknown>) | ((data: true) => Promise<unknown>) ``` and then when doing the inference ```ts type StoreKeys<T> = T extends { setKey: (k: infer K, v: any) => unknown } ? K : never ``` T['setKey'] becomes a union of functions, and TypeScript does not infer infer K across all branches cleanly—it bails out and often returns never. So I have a typing issue when calling the mutate. I can ts-ignore it or cast as never but this definitely confused me and I'm not sure if this is a change or just a documentation gap.