test_tick &&
GIT_AUTHOR_NAME="B V Uips" git commit -m bvuips &&
git branch preserved-author &&
- git filter-branch -f --msg-filter "cat; \
+ (sane_unset GIT_AUTHOR_NAME &&
+ git filter-branch -f --msg-filter "cat; \
test \$GIT_COMMIT != $(git rev-parse master) || \
echo Hallo" \
- preserved-author &&
+ preserved-author) &&
test 1 = $(git rev-list --author="B V Uips" preserved-author | wc -l)
'