SOLR search does not return attached files in the list of results

I tried running a search using SOLR. As you can see in the screenshot, the search suggest can find 2 documents where the term "javascript" is mentioned.

However, in the actual result list, only one document is displayed ("Import Word"). The "Preview Word" document should also be returned since it has an attachment which contains the word "javascript".

= How to reproduce =

1/ Create a page and import the content of "XWiki Release Notes.doc" using the OOo server.
2/ Create a second page and attach the "XWiki Release Notes.doc" file to the doc WITHOUT importing it

Search for "javascript".