Once an identity provider is created, it is no longer possible to easily edit it, as the form for editing the identity provider contains no value. Moreover, the provider's name is replace with " (quotation mark). Steps to reproduce: 1. Launch KTD or Koha instance using up-to-date master branch. 2. In the Administration menu, go to the Identity Providers page. 3. Click on the button to create a new identity provider. 4. Fill in the required fields, using test data. 5. Save the identity provider. 6. Click the "Edit" button for the newly created identity provider. 7. Notice that the form's fields are empty and the provider's name has been changed to ".