vc-test--checkin-patch: Restore alternative revert code path

* test/lisp/vc/vc-tests/vc-tests.el (vc-test--checkin-patch):
For the last stage of the test, restore alternative code path
for Git, though this time limited to when running the test on
MS-Windows.  Cf. subthread starting from
<https://lists.gnu.org/archive/html/emacs-devel/2025-09/msg00785.html>.

1 files changed, 9 insertions, 1 deletions

diff --git a/test/lisp/vc/vc-tests/vc-tests.el b/test/lisp/vc/vc-tests/vc-tests.el
index 38c659950c2..1625c3501db 100644
--- a/test/lisp/vc/vc-tests/vc-tests.el
+++ b/test/lisp/vc/vc-tests/vc-tests.el
@@ -881,7 +881,15 @@ This checks also `vc-backend' and `vc-responsible-backend'."
               ;; Should take the author, date but not the comment from
               ;; PATCH-STRING.
               (let ((patch-string (get-patch-string)))
-                (revert "Revert modification, second time")
+                ;; FIXME: Why doesn't `revert' work properly here?
+                (if (and (eq backend 'Git)
+                         (eq system-type 'windows-nt))
+                    (with-current-buffer buf
+                      (vc-checkin (list file) backend)
+                      (insert "Revert modification, second time")
+                      (let (vc-async-checkin)
+                        (log-edit-done)))
+                  (revert "Revert modification, second time"))
                 (vc-call-backend backend 'checkin-patch patch-string desc2))
               (check author date desc2))