Package version (if known): v14.0.0b0.dev4

Describe the bug

The user interface allows user to create links opening in a new window, but this option is ignored for the additional description fields.

Steps to Reproduce

1. Create a new draft
2. In the "Description" field, click on the "Insert link" button, and add a link opening in a new window
3. Click on the "Add description" button
4. In the "Additional Description" field, click on the "Insert link" button, and add a link opening in a new window
5. Publish or preview the draft
6. The link in the "Description" opens in a new window/tab
7. The link in the "Additional Description" does NOT open in a new window/tab

Expected behavior

The link in the "Additional Description" DOES open in a new window/tab

Screenshots (if applicable)

Rich editor form allow to specify the links should open in a new tab:

Rendered links source code: