The Image Quick Action doesn't use a relative reference for attachments from the current page

Steps to reproduce:

1. Create a new page.
2. Attach an image.
3. Edit the page using the WYSIWYG editor.
4. Type `/image` and press enter.
5. Select the newly attached image and insert it.
6. Switch to source view.

Current result: The inserted reference is absolute (e.g. `[[image:xwiki:Sandbox.WebHome@XWikiLogo.png]]`)

Expected result: The inserted reference is relative (e.g. `[[image:XWikiLogo.png]]`)