I'm not sure is this the best way to fix it. And I reran all the tests, all passed.
create new translator when clone i18next
Coverage increased (+0.006%) to 64.858% when pulling 7dd349b on anson0370:new-translator-instance-when-clone into 62c6917 on i18next:master.
looks right for me...will merge this asap...and publish a new version (not sure but might be a breaking version - but would prefer patch - as it fixes behaviour)