The thunk middleware should return what the thunk returns

[w9]

According to this post, in the original redux-thunk middleware, the call:

const res = store.dispatch({ type: 'MY_THUNK' });

should return whatever is returned by the thunk function. This is especially important when the thunk function is async, as it returns a Promise, and allows for thunk chaining:

await store.dispatch({ type: 'MY_THUNK_1' });
await store.dispatch({ type: 'MY_THUNK_2' });

Right now, the thunk middleware in redux-first-router returns the action itself, which is almost never useful.

[faceyspacey]

This is addressed in the next major version