New type extends 'select' setting error

[marksq]

Hello!

I use Ui-router, Formly and Formly Bootstrap Templates in my project and I have got the error:

Before this I had created the new type (as it was suggested in issue #67):

formlyConfig.setType({
    name: 'select-with-empty',
    extends: 'select',
    template: '<select class="form-control" ng-model="model[options.key]"><option value=""> </option></select>',
  });

The error appears when I open a state with form (which contains 'select-with-empty' type fields), then open an other state and then open the first state again. All of 'select-with-empty' type fields are hide, count of errors equals count of 'select-with-empty' type fields.

What is wrong? May be it's a question to Formly developers?

[alesmit]

Same issue here...