grouperClient WsGroup bean missing alternateName property

We are using retrofit2, okhttp3 and jackson to interface with WS. If a group has an altername name, we get this error.

Caused by: com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "alternateName" (class edu.internet2.middleware.grouperClient.ws.beans.WsGroup), not marked as ignorable (9 known properties: "detail", "idIndex", "name", "description", "displayExtension", "typeOfGroup", "extension", "uuid", "displayName"])
 at [Source: (okhttp3.ResponseBody$BomAwareReader); line: 1, column: 21943] (through reference chain: edu.internet2.middleware.grouperClient.ws.beans.WsGetMembershipsResults["wsGroups"]>java.lang.Object[][7]>edu.internet2.middleware.grouperClient.ws.beans.WsGroup["alternateName"])
    at com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException.from(UnrecognizedPropertyException.java:61)
    at com.fasterxml.jackson.databind.DeserializationContext.handleUnknownProperty(DeserializationContext.java:822)
    at com.fasterxml.jackson.databind.deser.std.StdDeserializer.handleUnknownProperty(StdDeserializer.java:1152)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.handleUnknownProperty(BeanDeserializerBase.java:1582)
    at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.handleUnknownVanilla(BeanDeserializerBase.java:1560)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:294)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:151)
    at com.fasterxml.jackson.databind.deser.std.ObjectArrayDeserializer.deserialize(ObjectArrayDeserializer.java:195)
    at com.fasterxml.jackson.databind.deser.std.ObjectArrayDeserializer.deserialize(ObjectArrayDeserializer.java:21)
    at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:127)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:288)
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:151)
    at com.fasterxml.jackson.databind.ObjectReader._unwrapAndDeserialize(ObjectReader.java:1703)
    at com.fasterxml.jackson.databind.ObjectReader._bindAndClose(ObjectReader.java:1608)
    at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:1203)
    at retrofit2.converter.jackson.JacksonResponseBodyConverter.convert(JacksonResponseBodyConverter.java:32)
    at retrofit2.converter.jackson.JacksonResponseBodyConverter.convert(JacksonResponseBodyConverter.java:23)
    at retrofit2.ServiceMethod.toResponse(ServiceMethod.java:122)
    at retrofit2.OkHttpCall.parseResponse(OkHttpCall.java:217)
    at retrofit2.OkHttpCall.execute(OkHttpCall.java:180)
    at edu.unc.its.idm.grouper.wsclient.tasks.BaseWsRequest.getRetrofitResponse(BaseWsRequest.java:257)
    ... 5 more

The WS json response is fine, it just includes a value for alternateName, which causes the WsGroup bean creation to fail.