* avoid append commit when upgrade get interrupted * add commitStores test * add change doc * Update store/rootmulti/store.go Co-authored-by: yihuang <huang@crypto.com> Co-authored-by: Aleksandr Bezobchuk <alexanderbez@users.noreply.github.com> Co-authored-by: Amaury <1293565+amaurym@users.noreply.github.com>