Re: Cloning from sites with 404 overridden

On Tue, 21 Mar 2006, Shawn Pearce wrote:

'0' x 40.  :-) There's some places already in the GIT source
which would have ``issues'' if they got an object with this hash.
Not sure if it is actually an entirely impossible hash or just one
that is highly improbable.

The all-zeroes hash is as improbable as any other one, and finding a 
"collision" (ie a "real object") with that hash is as improbable as any 
other collision, ie we can (and do) depend on it beign a unique identifier 
for "does not exist".

			Linus