GQL for caching hack

src/operations/video.gql

@@ -246,7 +246,18 @@ fragment StreamWithEndFrames on UploadStreamGQL {
   }
 }
 
+fragment SegmentEndFrames on SegmentEndFramesGQL {
+  id
+  segmentEndFrames
+}
+
+fragment SegmentStartTimes on SegmentStartTimesGQL {
+  id
+  segmentStartTimes
+}
+
 fragment PlaylistWithSegmentStartTimes on HLSPlaylistGQL {
+  videoId
   segmentDurations
   segmentStartTimes @client
 }