Reject change
https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47135/odata-core-v1.0-wd01-part3-csdl-2012-10-09-RH.doc
Accepted: https://www.oasis-open.org/apps/org/workgroup/odata/download.php/47172/latest/odata_meeting-11_on-20121011-minutes.html
An enumeration type also has a unique name, so it can be named in attribute notation.