NoSuchUserException in the logs after updating to DXP 7.4 U72

Issue

• We have deleted the default Test user from our environment in the past
• Now when we updated to U72 and above, we get an exception in our logs during startup:

com.liferay.portal.kernel.exception.NoSuchUserException: No User exists with the key {companyId=1042185, screenName=test}

Environment

• Liferay DXP 7.4 U72+

Resolution

• This intended behavior was introduced by LPS-180586, making the exception occur when the default admin user, which is defined by the default.admin.screen.name=test property has been deleted, 
• You need to add the new admin user's screen name to this property to remove the exception from the startup logs