Fix IndexOutOfBoundsException in RangeSLiderBehavior

client/src/main/java/ctbrec/ui/controls/range/RangeSliderBehavior.java

@@ -47,6 +47,7 @@ public class RangeSliderBehavior<T extends Number> extends BehaviorBase<RangeSli
         List<T> ticks = rangeSlider.getRange().getTicks();
         double percentPerTick = 1d / (ticks.size() - 1);
         int index = (int) Math.round(position / percentPerTick);
+        index = Math.min(ticks.size() - 1, Math.max(0, index));
         return ticks.get(index);
     }
 }