When running the tests in my environment, tests that derived from `test_wrapper.GitCheckoutTestCase` would fail on commit or tag due to incomplete or incorrect gpg config. Ideally, the tests should not be dependent on the user's git config. This change ensures $HOME (or Windows equivalent) is replaced for the session.
Bug: 302797407
Change-Id: Ib42b712dd7b6602fee6e18329a8c6d52fb9458b9
Reviewed-on: https://gerrit-review.googlesource.com/c/git-repo/+/388235
Tested-by: Jason R. Coombs <jaraco@google.com>
Reviewed-by: Mike Frysinger <vapier@google.com>
Commit-Queue: Jason R. Coombs <jaraco@google.com>