pack-objects: don't leak pack window reference when splitting packs

diff --git a/builtin-diff-tree.c b/builtin-diff-tree.c
index 1138c2da733bfe2730bbcb95d2a281de12595bde..8ecefd4f0f99117534deb9ca7d4446ade5c00223 100644 (file)
--- a/builtin-diff-tree.c
+++ b/builtin-diff-tree.c
@@ -71,8 +71,9 @@ static int diff_tree_stdin(char *line)
        line[len-1] = 0;
        if (get_sha1_hex(line, sha1))
                return -1;
-       obj = lookup_object(sha1);
-       obj = obj ? obj : parse_object(sha1);
+       obj = lookup_unknown_object(sha1);
+       if (!obj || !obj->parsed)
+               obj = parse_object(sha1);
        if (!obj)
                return -1;
        if (obj->type == OBJ_COMMIT)