Two Records Created in S_ACT_EMP After Undoing Activity Owner Changes (Doc ID 2835336.1)

Setup the 21.11 environment as follows:

(A) To allow non-owner modify activity, perform these steps:
1. Log into Siebel Tools
2. Navigate to Business component: "Action"
3. Then query for Field: "Non-Owner Read Only Flag"
4. The existing calculated value will show as:
IIf([Display]=LookupValue("ACTIVITY_DISPLAY_CODE","Calendar and Activity") AND [Primary Owned By]<>LoginName(),"Y","N")
5. Change this to simply: N
6. Compile the changes or Deliver the Workspace for IP17+
7. Restart the services
Additional information is available in "Activity Is Getting Readonly For Non Owner Users (Doc ID 2207902.1)"

(B) On Action Business Component, set Business Component user property "Delete Prior Owner On Reassignment" to Y

Steps to reproduce the issue:
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1. Login to Siebel Application
2. Navigate to Activities
3. Create a New Activity and save it
4. Owner will be (say) SADMIN
5. Run the select statement on SQL Developer
--> select ROW_ID, ACTIVITY_ID, EMP_ID from SIEBEL.S_ACT_EMP;
6. One record with Owner as SADMIN is returned
7. Click on the Owner Pick Applet in the Siebel application
8. Select a new Owner and click ok
9. Run the select statement on SQL Developer
--> select ROW_ID, ACTIVITY_ID, EMP_ID from SIEBEL.S_ACT_EMP;
10. One record will still be returned at this point with new Owner
11. Click on the Owner Pick applet in the application
12. Select a new Owner and click ok
13. Now undo the record.
14. Run the select statement on SQL Developer
--> select ROW_ID, ACTIVITY_ID, EMP_ID from SIEBEL.S_ACT_EMP;
15. Two records are now returned from the SQL.