fix(core): change `submitted` state on resetForm. (#786)
fix(core): change `submitted` state on resetForm. (#786)

fix #785
ngx-formly/ngx-formly,ngx-formly/ngx-formly,formly-js/ng2-formly,formly-js/ng2-formly,ngx-formly/ngx-formly,formly-js/ng-formly,formly-js/ng-formly,ngx-formly/ngx-formly,formly-js/ng2-formly