Fix flash of last frame on replay

entry_types/scrolled/package/spec/frontend/usePlayerState-spec.js

@@ -238,15 +238,25 @@ describe('usePlayerState', () => {
       expect(nextState.unplayed).toBe(true);
     });
 
-    it('is no longer unplayed after play action', () => {
+    it('is no longer unplayed after playing action', () => {
       const {result} = renderHookInEntry(() => usePlayerState());
       const [,actions] = result.current;
       act(() => actions.play());
+      act(() => actions.playing());
       const [nextState,] = result.current;
 
       expect(nextState.unplayed).toBe(false);
     });
 
+    it('stays unplayed after play action until playing', () => {
+      const {result} = renderHookInEntry(() => usePlayerState());
+      const [,actions] = result.current;
+      act(() => actions.play());
+      const [nextState,] = result.current;
+
+      expect(nextState.unplayed).toBe(true);
+    });
+
     it('becomes unplayed again when video ends to make it return to its initial look', () => {
       const {result} = renderHookInEntry(() => usePlayerState());
       const [,actions] = result.current;

entry_types/scrolled/package/src/frontend/MediaPlayer/usePlayerState.js

@@ -42,14 +42,14 @@ export function playerStateReducer(state, action){
         isLoading: true,
         shouldPlay: true,
         playFailed: false,
-        unplayed: false,
         lastControlledVia: action.payload.via
       };
     case PLAYING:
       return {
         ...state,
         shouldPlay: true,
         isPlaying: true,
+        unplayed: false,
         userIdle: false
       };
     case PLAY_AND_FADE_IN: