PROD 18.1 GA - What does "Remember me" checkbox do?

Document ID : KB000118811
Last Modified Date : 01/11/2018
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This one is just a question. What does the "Remember me" checkbox on the Login screen do? Why is it there?
MDM 18.1
As of now, this option is not working. The code is pointing to a dummy checkbox, that has no functionality. 
The intent was to remember the user and/or password details upon checking this box and displayed for subsequent login.