Merge pull request #34267 from dimitri-furman/dfurman/tempdbrg

Add a known tempdb RG issue

Author: prmerger-automator[bot]

docs/relational-databases/resource-governor/tempdb-space-resource-governance.md

@@ -5,7 +5,7 @@ author: dimitri-furman
 ms.author: dfurman
 ms.service: sql
 ms.topic: concept-article
-ms.date: 05/19/2025
+ms.date: 05/30/2025
 monikerRange: " >= sql-server-ver17 || >= sql-server-linux-ver17 "
 ---
 
@@ -225,6 +225,10 @@ When using `tempdb` space resource governance, consider the following best pract
 
     This approach prevents each workload group from consuming all space in `tempdb` by leaving 20 GB for other workload groups. At the same time, you avoid unnecessary query aborts when free `tempdb` space is still available because workload groups *A* and *B* aren't likely to consume a large amount of `tempdb` space at the same time.
 
+## Known issues
+
+- When a workfile is deallocated, the increase in the available `tempdb` space might be counted against the `internal` workload group instead of the workload group that is allocated to the workfile.
+
 ## Related content
 
 - [Resource governor](resource-governor.md)