After enabling the TFS 2017 checkin policies for Code Analysis and Builds in VS 2017, they don't work for .Net Standard Library nor .Net Core projects. The final result is the same as if the policies were disabled. Instead, they do work for .NET projects, such as .NET 4.6.1.
Cannot add TFS server group to Access Level
Unable to add a gMSA to any Security Group
Tfs 2017.1 web access broken
New work item form shows wrong field title