kernel-rebase: fix issue with replace disposition

BUG=None
TEST=run kernel continuous rebase triage

Change-Id: Iac8b2816a72715181cc17e386be2a19a27576225
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/5048691
Commit-Queue: Bartłomiej Bujak <bbujak@google.com>
Tested-by: Bartłomiej Bujak <bbujak@google.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@chromium.org>
2 files changed