move detection doesnt take filename into account

[Elliot Wolk <elliot.wolk@gmail.com>]

if you move two identical {e.g.: empty} files to two new locations in a 
single commit, the move detection picks them {seemingly?} arbitrarily. 
it should use a statistical algorithm to compare the filenames and pick 
a likely match.

my apologies in advance if this isnt the right venue or is improperly 
formatted, or if this is extraneous noise, or widely known, etc.

+ cd /tmp
+ mkdir repo
+ cd repo
+ git init
Initialized empty Git repository in /tmp/repo/.git/
+ touch a1 b1 c1
+ git add a1 b1 c1
+ git commit -m 1
[master (root-commit) 72f8c89] 1
  3 files changed, 0 insertions(+), 0 deletions(-)
  create mode 100644 a1
  create mode 100644 b1
  create mode 100644 c1
+ git mv a1 a2
+ git mv b1 b2
+ git mv c1 c2
+ git commit -m 2
[master 359da78] 2
  3 files changed, 0 insertions(+), 0 deletions(-)
  rename c1 => a2 (100%)
  rename b1 => b2 (100%)
  rename a1 => c2 (100%)
+ git log --name-status -M
commit 359da78caaaf06848ae32359abfeb87db35cdb30
Author: Elliot Wolk <elliot.wolk@gmail.com>
Date:   Mon Jun 30 02:26:49 2014 -0400

     2

R100    c1      a2
R100    b1      b2
R100    a1      c2

commit 72f8c89b418e3b1d13ec350f4c30b5088fc69e83
Author: Elliot Wolk <elliot.wolk@gmail.com>
Date:   Mon Jun 30 02:26:49 2014 -0400

     1

A       a1
A       b1
A       c1