Fix ungroup.

Normand Briere

2019-06-29 a69bb4474a3264a9a7a7f8b8d8154ea771f167c8

 timeflow/app/actions/TimeflowAction.java
..
..
@@ -27,7 +27,7 @@
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 	}
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-    protected TFModel getModel()
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+    protected TimeflowModel getModel()
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     {
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     	return app.model;
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     }