sib-form-date without value does not create input

Expected behavior

input should be displayed with value=""

What's happening?

Input is not created in sib-form-date if value is null or invalid

Steps to reproduce

<solid-form
  data-src="api/users"
  fields="name, birthday"
  widget-birthday="sib-form-date"
><solid-form>

Relevant logs and/or screenshots

Your Environment

• Library version: v0.11

• Browser name and version: any

• Operating System and version (desktop or mobile): any

• Targeted application: solid-subscription @Marjolaine