2180342 - Error 17362 raised by sp_changedbowner for user tempdb - SAP ASE

• In the "sp_helpdb tempdb3" output, the dbo of the user tempdb is a non-sa user.
• Receiving the following error when executing "sp_changedbowner sa" to change the dbo of that user tempdb to "sa":

1> use tempdb3
2> go
1> sp_changedbowner sa
2> go
Msg 17362, Level 16, State 1:
Server 'test16', Procedure 'sp_changedbowner', Line 181:The proposed new db owner already is a user in the database or owns the database.
(1 row affected)
(return status = 1)

• SAP Adaptive Server Enterprise (ASE) 15.7
• SAP Adaptive Server Enterprise (ASE) 16.0
• SAP Adaptive Server Enterprise (ASE) 15.0
• SAP Adaptive Server Enterprise (ASE) 15.5

sysdatabases, sysusers, restart, reboot,  automatically , KBA , ase , sybase , tempdb , 17362 , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , BC-DB-SYB , Business Suite on Adaptive Server Enterprise , BC-SYB-ASE-CE , ASE Cluster Edition (Standalone) , BW-SYS-DB-SYB , BW on Adaptive Server Enterprise , Problem