The Git for Windows distribution includes "MinGit", a minimal git for Windows. MinGit 2.26.0 and prior do not include large file support. The absence of large file support causes the git client plugin unit tests to fail on Windows machines that use MinGit.
Git client plugin automated tests should pass successfully on MinGit by ignoring tests that require Large File Support if it is not installed.
Download and install MinGit, configure it as the only git in your Windows path, and then run the git client plugin automated tests with the command:
It will fail several tests and report that the command git lfs was not found. Those tests already use Assume to skip the tests if git LFS is not installed. The assumption should be extended to cover the MinGit case as well.