[Applied]
See summary
https://www.oasis-open.org/apps/org/workgroup/odata/download.php/48903/odata-core-v4.0-wd01-part3-csdl-2013-4-23.docx
Accepted: https://www.oasis-open.org/committees/download.php/49055/odata-meeting-35_on-20130502-minutes.html#odata-353
We don't have use cases for these constructs. It was a bug in the initial contribution.