Wrong link to erroneous documents when importing an invalid XAR

Steps to reproduce:

1. Install the Meeting app
2. Import BROKEN_application-meeting-ui.xar
3. Check the "List of erroneous documents" section and click on the link for the document

The link points to

http://localhost:8080/xwiki/wiki/nou/view/Meeting%2FWebHome/xml

instead of

http://localhost:8080/xwiki/wiki/nou/view/Meeting/WebHome