When we are in RTC 6.0.6 ifix015, we can use the OSLC protocol to access through the following URL to return the status of the workitem (<dc:title>New</dc:title>, this New is the literal value of the status)
GET https://clmserver/ccm/oslc/workitems/123456/rtc_cm:state

The returned message is as follows:
<rtc_cm:Status rdf:about="https://clmserver/ccm/oslc/workflows/_HdsP8BTFEeqpBb4-kiZcxw/states/com.ibm.team.workitem.defectWorkflow/com.abcdefg.team.workitem.workflow.dft.state .s1">
<dc:identifier>com.abcdefg.team.workitem.workflow.dft.state.s1</dc:identifier>
<dc:title>New</dc:title>
<rtc_cm:iconUrl>
https://clmserver/ccm/service/com.ibm.team.workitem.common.internal.model.IImageContentService/processattachment/_HdsP8BTFEeqpBb4-kiZcxw/workflow/new.gif
</rtc_cm:iconUrl>
<rtc_cm:group>open</rtc_cm:group>
</rtc_cm:Status>

But after upgrading to 6.0.6.1 ifix011, the same method returned a code of 500. as follows:

<oslc_cm:error>
<oslc_cm:status>500</oslc_cm:status>
<oslc_cm:message/>
</oslc_cm:error>


The same problem, there is rtc_cm:resolution attribute.

Is the related API interface changed in V6.0.6.1 and is no longer compatible with the original calling method?