When a node that has content is set to disable full text indexing, content metadata such as mimetype, length, encoding, and locale are not indexed either.
The metadata should be indexed when cm:isContentIndexed is set to false.
Use case: I'm not interested in the contents but I still would like to find them by mimetype.
I've attached fixed version of CoreTracker. The fix version is for 4.2.2 enterprise.