Comment 3 for bug 345359

Hi ukamata,

I fixed just restoring from backup, so when the real problem occure, what is Broken pipe error (at least in my case), it restore config data successfuly. But this may probably crash too (never happens to me yet, fortunately).
Your version with saving to other file first should be more error resistant, it's all on shutil.move() function success :)

Good work!