handle PRESCHEDULED in RaceContext

java/com.sap.sailing.gwt.ui/src/main/java/com/sap/sailing/gwt/ui/shared/dispatch/event/RaceContext.java

@@ -181,6 +181,7 @@ public class RaceContext {
             case FINISHING:
             case RUNNING:
             case SCHEDULED:
+            case PRESCHEDULED:
             case STARTPHASE:
             case UNKNOWN:
                 break;