Try searching for 'heroes*.avi'
No change what so ever... I get 3459 files - total: 10,73 GB.
With
*.avi I get 3487 files - total: 23,30 GB
With
heroes: 3465 files - total: 10,73 GB
With
DSC01305.JPG: 3452 files - total: 8,34 GB
With
asdasdasdd: 3452 files - total: 8,34 GB
With
"buggy search": 3452 files - total: 8,34 GB
...so there's really no logic
On my other 2 PCs with b142 the search works perfectly in the root though... Same build, same template, same OS, pretty much the same software, same browser.