diff --git a/tools/patman/func_test.py b/tools/patman/func_test.py
index 9c7d5d8..61df823 100644
--- a/tools/patman/func_test.py
+++ b/tools/patman/func_test.py
@@ -503,7 +503,7 @@
         target = repo.revparse_single('HEAD~2')
         # pylint doesn't seem to find this
         # pylint: disable=E1101
-        repo.reset(target.oid, pygit2.GIT_CHECKOUT_FORCE)
+        repo.reset(target.oid, pygit2.enums.ResetMode.HARD)
         self.make_commit_with_file('video: Some video improvements', '''
 Fix up the video so that
 it looks more purple. Purple is
@@ -543,6 +543,13 @@
         repo.config.set_multivar('branch.second.merge', '', 'refs/heads/base')
 
         repo.branches.local.create('base', base_target)
+
+        target = repo.lookup_reference('refs/heads/first')
+        repo.checkout(target, strategy=pygit2.GIT_CHECKOUT_FORCE)
+        target = repo.revparse_single('HEAD')
+        repo.reset(target.oid, pygit2.enums.ResetMode.HARD)
+
+        self.assertFalse(gitutil.check_dirty(self.gitdir, self.tmpdir))
         return repo
 
     def test_branch(self):