test_expect_success 'bogus offset inside v2 extended table' '
# We need two objects here, so we can plausibly require
# an extended table (if the first object were larger than 2^31).
- do_pack "$object $(git rev-parse HEAD)" --index-version=2 &&
+ #
+ # Note that the value is important here. We want $object as
+ # the second entry in sorted-sha1 order. The sha1 of 1485 starts
+ # with "000", which sorts before that of $object (which starts
+ # with "fff").
+ second=$(echo 1485 | git hash-object -w --stdin) &&
+ do_pack "$object $second" --index-version=2 &&
# We have to make extra room for the table, so we cannot
# just munge in place as usual.