commit --amend -S: strip existing gpgsig headers
Any existing commit signature was made against the contents of the old
commit, including its committer date that is about to change, and will
become invalid by amending it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/commit.c b/builtin/commit.c
index fa41ec8..970a836 100644
--- a/builtin/commit.c
+++ b/builtin/commit.c
@@ -1494,7 +1494,8 @@
}
if (amend) {
- extra = read_commit_extra_headers(current_head);
+ const char *exclude_gpgsig[2] = { "gpgsig", NULL };
+ extra = read_commit_extra_headers(current_head, exclude_gpgsig);
} else {
struct commit_extra_header **tail = &extra;
append_merge_tag_headers(parents, &tail);
