Selecting an internal link still displays a full url

Reproduction steps

1. edit a page with the XWiki backend
2. select a text and click on the link button on the floating menu
3. select a page suggestion
4. observe the link value

Expected

The link field contains a document reference (e.g., A.B.C)

Actual

The link field contains a URL (e.g., http://localhost:15680/xwiki/bin/view/A/B/C/).