I am using TFS REST APIs to fetch the workitems info and for other operations. When I use the instructions mentioned on the URL listed below to get the workitem details, JSON which is coming back has all the info related to this workitem but it is missing the "relations" section in it. I have defined parent and child relations for this workitem which I am querying. have tried different querystring options for "expand" such as relations and all.
https://www.visualstudio.com/en-us/docs/integrate/api/wit/work-items#with-links-and-attachments-1
Would really appreciate any guidance on how to fetch the info about related workitems.