sequencer: fix "rebase -i --root" corrupting author header

diff --git a/line-log.c b/line-log.c
index ecdce08c4be24cc14109796d9a7c165c53753a88..fa9cfd5bdbb5dfe4a1ca5c7f7711435caf091805 100644 (file)
--- a/line-log.c
+++ b/line-log.c
@@ -816,8 +816,8 @@ static void queue_diffs(struct line_log_data *range,
        assert(commit);
 
        DIFF_QUEUE_CLEAR(&diff_queued_diff);
-       diff_tree_oid(parent ? &parent->tree->object.oid : NULL,
-                     &commit->tree->object.oid, "", opt);
+       diff_tree_oid(parent ? get_commit_tree_oid(parent) : NULL,
+                     get_commit_tree_oid(commit), "", opt);
        if (opt->detect_rename) {
                filter_diffs_for_paths(range, 1);
                if (diff_might_be_rename())