When Logon Shield feature is enabled during Container configuration (by selecting "Prevent user from being logged-on while job executed" under Procedure Options tab) and this particular job runs, the following Local Computer Policy is changed from Disabled (default) to Enabled:
Client Automation - All versions
There is a DSM configuration policy that manages this behavior, which is called "Apply Windows security options", located under:
DSM -> Software Delivery -> Software Management -> Logon Shield
By setting this to Disabled, the local security policy won't be modified after the SD Jobs ends.