Get example panics

[dayat23]

Getting this panic on the current master code, my code is the same as in the examples folder, this happens as soon as oninput gets triggered for me.

panicked at 'called Option::unwrap()on aNone value', /Users/dayat/.cargo/registry/src/github.com-1ecc6299db9ec823/yew_form-0.1.7/src/form.rs:24:39

versions:

yew = "0.17.4" yew_form = "0.1.7" yew_form_derive = "0.1.7"

[dayat23]

@jfbilodeau did you update that package in crates.io?