Fix ungroup.

Normand Briere

2019-06-29 a69bb4474a3264a9a7a7f8b8d8154ea771f167c8

 timeflow/vis/timeline/TimelineVisuals.java
..
..
@@ -15,9 +15,9 @@
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  */
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 public class TimelineVisuals
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 {
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-
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         private Map<String, TimelineTrack> trackTable = new HashMap<String, TimelineTrack>();
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         ArrayList<TimelineTrack> trackList = new ArrayList<TimelineTrack>();
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+        
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         private TimeScale timeScale = new TimeScale();
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         private Rectangle bounds = new Rectangle();
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         private boolean frameChanged;