Keytar - why is username appended to the service name for windows?

Just wondering why keytar appends the username to the end of the service name for Windows.
E.g.
keytar.setPassword(“TERMSRV/10.1.1.2”, “test”, “test”);
that creates the service called TERMSRV/10.1.1.2/test in credential manager when really it should just be TERMSRV/10.1.1.2 right?
Am I correct or am I doing something wrong?
Thought I’d ask before making an issue or feature request on Github.