under following circumstances, wuala crashes (v147, linux):

1) I've been downloading a file, that was larger, than my remaining diskspace in /
2) in /home/wuala and the location where i wanted to save the file to, there was enough space free
3) it seems like wuala downloads every file first to /tmp and - when it has received all of its fragments - move this file to /home/wuala/....
4) this results in wuala crashing when there is not enough space in /tmp left. 
5) this behaviour is a bug for three reasons:
   a) there should be a warning or a error-handler for this
   b) since i've told wuala to store all files under /home/name/wuala/Data, i had no reason to   
      expect that wuala tries to store large amounts of data elsewhere
   c) on most linux- systems / and /tmp are on the same space with limit amount of free space,  
      since noone wants to hold "dead" space on root partition
      
right now i've "mount -o bind"ed another folder in my home-directory to /tmp - that did the trick.