Users avatars are displayed as HTML code on "User Directory" when using LiveData macro

STEPS TO REPRODUCE

1. Go to Drawer > User Index
2. Use ?useLiveData=true in URL
3. Observe the Picture column

EXPECTED RESULTS

The users' avatars are properly displayed as pictures.

ACTUAL RESULTS

Some HTML code is displayed instead, like:

<img src='http://localhost:8080/bin/download/XWiki/U1/Avatar.jpg?width=120&#38;height=120&#38;keepAspectRatio=true&#38;rev=1.1' alt='User One' title='User One'/>