They just closed the Connect item as Won't Fix.

http://dnhlmssql.blogspot.com/2014/10/it-is-morning-of-bad-new-for-my-connect.html

https://connect.microsoft.com/SQLServer/feedback/ViewFeedback.aspx?FeedbackID=774754

--dan holmes

Here is an alternate approach that produces a 'portable' data dictionary. Use a database to start the process, then script those extended properties to a SQL text file. ...

"By clearing the buffer pool, using the command DBCC DROPCLEANBUFFERS, we ensure any data is read from the underlying physical disks, and this is where we want to find any...

This being a proc makes it less usable than it could be. Here is a version that is a view. As a view it can be sorted as...