Huge bug in mv 4.1.11 (i386)

Hello, I've lost data with this bug: When moving a complete tree from 
one volume to another, if the process can't continue(eg because the 
volume is full), the files that mv started to move are left as they are, 
meaning that lots of them are incomplete! There is a big risk that the 
user trust the files without seeing that they are incomplete. Same 
problem for folders, often they are created, but without all their files 
and subdirectories. Thus, a solution MUST be found. Why not checking the 
space left before starting to move something?

-- 
Bien cordialement, Stephane Ascoet, cyberespace Saint-Thonan(preneur de 
materiel), <http://www.cdr-pays-brest.infini.fr/index.php/Accueil>.
Fait en toute legalite avec Mozilla(sur Apple eMac sous OS X.2.8+AW 
6.2.9), qui est libre et que vous pouvez aussi utiliser.