Avoid fetching movies twice on initial load

frontend/src/Movie/Details/MovieDetailsPage.tsx

@@ -1,7 +1,6 @@
 import React, { useEffect } from 'react';
 import { useSelector } from 'react-redux';
-import { useParams } from 'react-router';
-import { useHistory } from 'react-router-dom';
+import { useHistory, useParams } from 'react-router';
 import NotFound from 'Components/NotFound';
 import usePrevious from 'Helpers/Hooks/usePrevious';
 import createAllMoviesSelector from 'Store/Selectors/createAllMoviesSelector';

frontend/src/Movie/Index/MovieIndex.tsx

@@ -6,6 +6,7 @@ import React, {
   useState,
 } from 'react';
 import { useDispatch, useSelector } from 'react-redux';
+import { useHistory } from 'react-router';
 import { SelectProvider } from 'App/SelectContext';
 import ClientSideCollectionAppState from 'App/State/ClientSideCollectionAppState';
 import MoviesAppState, { MovieIndexAppState } from 'App/State/MoviesAppState';
@@ -76,6 +77,8 @@ interface MovieIndexProps {
 }
 
 const MovieIndex = withScrollPosition((props: MovieIndexProps) => {
+  const history = useHistory();
+
   const {
     isFetching,
     isPopulated,
@@ -107,7 +110,12 @@ const MovieIndex = withScrollPosition((props: MovieIndexProps) => {
   const [isSelectMode, setIsSelectMode] = useState(false);
 
   useEffect(() => {
-    dispatch(fetchMovies());
+    if (history.action === 'PUSH') {
+      dispatch(fetchMovies());
+    }
+  }, [history, dispatch]);
+
+  useEffect(() => {
     dispatch(fetchQueueDetails({ all: true }));
   }, [dispatch]);