I noticed that the "Force Check" function will allocate space for the files.

Is that intended?

What happened:
Using Tixati 2.47 Portable on Windows 8.1 I opened a torrent with about 10GB content.
After a short while I moved the torrent (menu Local Files / Location) to another volume (drive letter).
On both drives the Windows Explorer properties dialog said : Size: 10GB, Size on disk: 400 MB
The on the new location I triggered "Force Check". After it finished, the properties dialog said:
Size: 10GB, Size on disk: 10 GB
Also the entire disk usage increased accordingly.

So it seems doing a force check (which I guess is only reading the files) makes the files not sparse any more.

Regards,
David

Force Recheck has to check each piece... which would therefore.. MAKE 00 filled pieces.
You really only want to use "force recheck" for items when you may have deleted a transfer, or added a transfer you downloaded in another client / by other means.

(N.B. this behaviour seems completely logical to me)