Combo bug

combo.c

static int filter_timed_out_candidates(int64_t timestamp) {
    int num_candidates = 0;
    for (int i = 0; i < CONFIG_ZMK_COMBO_MAX_COMBOS_PER_KEY; i++) {
        struct combo_candidate *candidate = &candidates[i];
        if (candidate->combo == NULL) {
            break;
        }
        if (candidate->timeout_at > timestamp) {
            // reorder candidates so they're contiguous
            candidates[num_candidates].combo = candidate->combo;
            candidates[num_candidates].timeout_at = candidates->timeout_at;
            num_candidates++;
        } else {
            candidate->combo = NULL;
        }
    }
    return num_candidates;
}