3169329 - The column "lockdate" is not updated on "syslogins" to "NULL" when unlocking a login - SAP ASE

When executing "sp_locklogin" to unlock a login, the column "lockdate" is not updated on "syslogins" to "NULL", but instead, it's updated to the current date:

1> sp_locklogin bbbbb,'unlock'
2> go
Account unlocked.
(return status = 0)

1> select name, lockdate from syslogins where name='bbbbb'
2> go
name lockdate
------------------------------ -------------------------------
bbbbb Dec 29 2021 2:05PM

(1 row affected)

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SAP Adaptive Server Enterprise 16.0 and higher

sp_addlogin create login sp_lock lock unlock timestamp syslogins lockdate , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , How To