Markdium-React race condition bug

Markdium-JSX.jsx

useEffect(() => {
  let _previousKey = pets.selectedPet;
  if (pets.selectedPet) {
    dispatch({ type: "FETCH_PET" });
    getPet(pets.selectedPet).then(data => {
      if (_previousKey === pets.selectedPet) {
        dispatch({ type: "FETCH_PET_SUCCESS", payload: data });
      }
    });
  } else {
    dispatch({ type: "RESET" });
  }
}, [pets.selectedPet]);