Fixes #1412

Author: Andrew Ochsner

src/Nest/Resolvers/Converters/Filters/RangeFilterJsonConverter.cs

@@ -93,15 +93,15 @@ public override object ReadJson(JsonReader reader, Type objectType, object exist
 
 						var gt = jv.Value["gt"];
 						if (gt != null)
-							filter.GreaterThanOrEqualTo = ToString(gt);
+							filter.GreaterThan = ToString(gt);
 
 						var lte = jv.Value["lte"];
 						if (lte != null)
 							filter.LowerThanOrEqualTo = ToString(lte);
 
 						var lt = jv.Value["lt"];
 						if (lt != null)
-							filter.LowerThanOrEqualTo = ToString(lt);
+							filter.LowerThan = ToString(lt);
 
 						break;
 				}