Readonly formatter settings validation firing when formatter not selected.

Thank you for the thorough bug report.

I think this is caused by the way this module only hides the different formatter settings using the drupal #states api, leaving any validation handling to fire even when the form itself is invisible.

As a work-around, you can choose Geocoder as the formatter and select a provider, then switch to plain text and the form should save without the error.

But the real fix is probably to use the drupal ajax api to bring the formatter settings form in.

I've updated the formatter type selection to use ajax. This means validation should be skipped if that formatter is not selected.

I've switched things to use an ajax based widget. it should work along side modules which do validation in their field formatter settings form now.

Automatically closed - issue fixed for 2 weeks with no activity.