Tempdb.mdf file takes on Model database initial size

I changed model database size  to 5 Gbs so new user databases will take on Model database size.

USE [master]
GO
ALTER DATABASE [model] MODIFY FILE ( NAME = N'modeldev', SIZE = 5242880KB )
GO

Before restart SQL instance, I have sized tempdb datafiles size to 512 MB

Then I restarted SQL instance and agent. It takes a while to connect to SQL server via SSMS.

Tempdb.mdf file is recreated with 5 Gbs which takes on Model database initial size.

According to MS KB, tempdb should not take on Modeldb.
https://support.microsoft.com/en-us/kb/307487