When adding a new article, with eZ Find extension active, each time you change from a attribute, to another, you'll get the following notice in var/log/notice.log

[ May 03 2013 12:03:17 ] [192.168.2.204] Timing Point: Module start 'content'
[ May 03 2013 12:03:17 ] [192.168.2.204] eZSolr::moreLikeThis:
Missing query arguments for More Like This: querytype = nid, Query Value =

Steps

1. Start eZ Find
2. Login into admin interface
3. Click on "Content Structure"
4. Click on "Create new" button
5. Choose "Article" from the drop down list
6. Write something in the "Title (required) :" field
7. Open terminal/putty window
$ tail -f var/log/notice.log
8. Back to the browser change to the "Summary (required):" field
9. Write something
10. Change to the "Body" field
11. Verify in the terminal/putty window that you'll have the following error

[ May 03 2013 12:09:23 ] [192.168.2.204] Timing Point: Module start 'content'
[ May 03 2013 12:09:23 ] [192.168.2.204] eZSolr::moreLikeThis:
Missing query arguments for More Like This: querytype = nid, Query Value =