How to update reference types using OSLC Change Request XML format?

I would like to update Enumeration List attributes using the REST API based on XML format.

I know how to do that using the JSON format see the [1], but in case of XML format even when I try to get values of this attribute I get only the info about the reference type without the values:




I found an example how to add a link which is also a reference type [2], but it does not work.


I used a request like this one:

<oslc_cm:ChangeRequest xmlns:rtc_cm="https://jazz.net/xmlns/prod/jazz/rtc/cm/1.0/" xmlns:oslc_disc="http://open-services.net/xmlns/discovery/1.0/" xmlns:dc="http://purl.org/dc/terms/" xmlns:opensearch="http://a9.com/-/spec/opensearch/1.1/" xmlns:jp="https://jazz.net/xmlns/prod/jazz/presentation/1.0/" xmlns:jd="https://jazz.net/xmlns/prod/jazz/discovery/1.0/" xmlns:oslc_cm="http://open-services.net/xmlns/cm/1.0/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:calm="https://jazz.net/xmlns/prod/jazz/calm/1.0/">
  <dc:title>Changed title</dc:title>
  <rtc_cm:related_projects_attribute oslc_cm:collref="https://localhost:9443/ccm/oslc/enumerations/_ZvMmj2DREeSnNOlM1JrDkA/enumerationList$related_projects/Project%202" />
</oslc_cm:ChangeRequest>

or

<oslc_cm:ChangeRequest xmlns:rtc_cm="https://jazz.net/xmlns/prod/jazz/rtc/cm/1.0/" xmlns:oslc_disc="http://open-services.net/xmlns/discovery/1.0/" xmlns:dc="http://purl.org/dc/terms/" xmlns:opensearch="http://a9.com/-/spec/opensearch/1.1/" xmlns:jp="https://jazz.net/xmlns/prod/jazz/presentation/1.0/" xmlns:jd="https://jazz.net/xmlns/prod/jazz/discovery/1.0/" xmlns:oslc_cm="http://open-services.net/xmlns/cm/1.0/" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:calm="https://jazz.net/xmlns/prod/jazz/calm/1.0/">
  <dc:title>Hello!</dc:title>
  <rtc_cm:related_projects_attribute oslc_cm:collref="https://localhost:9443/ccm/oslc/enumerations/_ZvMmj2DREeSnNOlM1JrDkA/enumerationList$related_projects">
    <rtc_cm:Literal rdf:resource="https://localhost:9443/ccm/oslc/enumerations/_ZvMmj2DREeSnNOlM1JrDkA/enumerationList$related_projects/Project%202"/>
  </rtc_cm:related_projects_attribute>
</oslc_cm:ChangeRequest>

and the title was changed but the enumeration values did not.

All the enums:



[1] https://jazz.net/forum/questions/166922/how-to-use-firebug-and-poster-to-find-and-test-rest-parameters-to-change-workitemss-in-rtc
[2] https://jazz.net/wiki/bin/view/Main/ResourceOrientedWorkItemAPIv2#Adding_Links_to_a_Work_Item