Fix undefined offset notice when no order states are set #4903
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When the DB has no order states (or just missing non-visible, or visible ones), M2 throws with
Notice: Undefined offset: 1/0 in /vagrant/vendor/magento/module-sales/Model/Order/Config.php on line 256
.You can argue that M2 shouldn't take into consideration invalid DBs, and I would just slightly agree with you there, but, for such a small fix, why bother arguing that in the first place, eh? I've also added an un-related strict checking.