This accompanies c5b09feb786f6a2456ec3d8203d0f4d67f09f043 (Avoid
update hook during git-rebase --interactive) to make sure that
any regression to make Debian's Bug#458782 (git-core: git-rebase
doesn't work when trying to squash changes into commits created
with --no-verify) resurface will be caught.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>