fallbackLng: false seems to not be handled

[immortal-tofu]

Describe the bug
If you use react-i18next (for me, with hooks, but I'm not sure it's related), if you init i18next with fallbackLng: false and an unknown lng, you'll encounter an error.

Cannot read property '0' of undefined in node_modules/react-i18next/dist/es/hooks/useTranslation.js?:52:52

Occurs in react-i18next version
9.02

To Reproduce

• Initialize a i18next with fallbackLng: false and set language to an unknown value (for example eo)

Expected behaviour
Working :)

OS (please complete the following information):
Happened on SSR, node 10 on Elasticbeanstalk and locally (MacOS)

[jamuhl]

will need to check - thank you for reporting

[jamuhl]

could you retry with react-i18next@9.0.3

that at least should fix the state never get ready and therefore "killing" the app

[jamuhl]

closing for now...feel free to reopen if still an issue in react-i18next@>=9.0.3