files-backend: don't rewrite the `packed-refs` file unnecessarily

diff --git a/builtin/reset.c b/builtin/reset.c
index 4a02d740739d53f986537969128738acf3cb4de7..d72c7d1c96b7a7da5c1aaee80d36c5b4acdb2200 100644 (file)
--- a/builtin/reset.c
+++ b/builtin/reset.c
@@ -156,6 +156,7 @@ static int read_from_tree(const struct pathspec *pathspec,
        opt.output_format = DIFF_FORMAT_CALLBACK;
        opt.format_callback = update_index_from_diff;
        opt.format_callback_data = &intent_to_add;
+       opt.flags |= DIFF_OPT_OVERRIDE_SUBMODULE_CONFIG;
 
        if (do_diff_cache(tree_oid, &opt))
                return 1;
@@ -308,8 +309,6 @@ int cmd_reset(int argc, const char **argv, const char *prefix)
                                                PARSE_OPT_KEEP_DASHDASH);
        parse_args(&pathspec, argv, prefix, patch_mode, &rev);
 
-       load_submodule_cache();
-
        unborn = !strcmp(rev, "HEAD") && get_oid("HEAD", &oid);
        if (unborn) {
                /* reset on unborn branch: treat as reset to empty tree */