Steps to reproduce:
- Go to Add Extensions and install Ratings Application v7.4.5
- Go to XWiki.RatingsConfig
- Edit it in Object Mode
- Inside the XWiki.RatingsConfigClass choose Display ratings: Yes
- Save the page
- Go to any page and check the top part of it, where the rating stars should be displayed.
Instead of the stars there's a text displayed: #displayFullRating($doc.getDocumentReference() "")
The bug doesn't reproduce on XWiki 8.3M2 (with Ratings app v8.2.1 installed).