Audience value not being saved for OIDC metadata sources

Scenario:

1. From the 'Add New' dropdown menu in the header, select 'Add a new metadata source'.
2. Select OIDC (OpenID Connect) from the Identity Protocol field.
3. Populate the Service Provider Name (Dashboard Display Only) and Entity ID fields.
4. Click on the 'Common Attributes' Next button.
5. Click on the 'User interface / MDUI Information' Next button.
6. Click on the 'SP SSO Descriptor Information' Next button.
7. Click the Add+ button for Audience.
8. Populate the Audience field and click on the 'Logout Endpoints' Next button.
9. Click on the 'Security Information' Next button.
10. Click on the 'Assertion Consumer Service' Next button.
11. Click on the 'Relying Party Overrides' Next button.
12. Click on the 'Attributes Release' Next button.
13. Click on the 'Finish' Next button.
14. Click the Save button.

Expected behavior: The Audience field is populated with the value entered in step 8.

Actual behavior: The Audience field have no value.