OnFocus only fires once

[sethomas]

OnFocus event is only firing once.

Looking at this line:
https://github.com/final-form/react-final-form-listeners/blob/master/src/OnFocus.js#L32

state.previous will never be set back to false.

Sorry for not giving you heaps of info, this seems like an easy enough fix.

LOVING final-form and your react wrappers (currently migrating away from redux forms)

[erikras]

Published fix in v1.0.1.

[erikras]

Don't expect this turn around time on every bug in the future! 😜