c94736a (merge-recursive: don't segfault while handling rename clashes
2009-07-30) added this testcase with an interesting corner case test,
which previously had cased git to segfault. This test ensures that the
segfault does not return and that the merge correctly fails; just add
some checks that verify the state of the index and worktree after the merge
are correct.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
When a branch moves A to B while the other branch created B (or moved C to
B), the code tried to rename one of them to B~something to preserve both
versions, and failed to register temporary resolution for the original
path B at stage#0 during virtual ancestor computation. This left the
index in unmerged state and caused a segfault.
A better solution is to merge these two versions of B's in place and use
the (potentially conflicting) result as the intermediate merge result in
the virtual ancestor.
Signed-off-by: Junio C Hamano <gitster@pobox.com>