I've just done some further testing with this update (or at least whatever version is the latest on github war3source 2.0)
I have found the following bugs:
1) The all races menu is empty! The other menus all populate as normal, but instead of all races being in the all races menu, none are

2) Whenever I press the last option (to go back up a level in the menu), I see the following error in console:
.sp::OnW3Denyable()
L 01/01/2013 - 13:20:25: [SM] Plugin encountered error 25: Call was aborted
L 01/01/2013 - 13:20:25: [SM] Native "ThrowError" reported: DN_CanSelectRace CA
LLED WITH INVALID RACE [-1]
L 01/01/2013 - 13:20:25: [SM] Displaying call stack trace for plugin "w3s\War3So
urce_Engine_RaceRestrictions.smx":
L 01/01/2013 - 13:20:25: [SM] [0] Line 26, War3Source_Engine_RaceRestrictions
.sp::OnW3Denyable()
L 01/01/2013 - 13:20:27: [SM] Plugin encountered error 25: Call was aborted
L 01/01/2013 - 13:20:27: [SM] Native "ThrowError" reported: DN_CanSelectRace CA
LLED WITH INVALID RACE [-1]
L 01/01/2013 - 13:20:27: [SM] Displaying call stack trace for plugin "w3s\War3So
urce_Engine_RaceRestrictions.smx":
L 01/01/2013 - 13:20:27: [SM] [0] Line 26, War3Source_Engine_RaceRestrictions
.sp::OnW3Denyable()
L 01/01/2013 - 13:20:31: [SM] Plugin encountered error 25: Call was aborted
L 01/01/2013 - 13:20:31: [SM] Native "ThrowError" reported: DN_CanSelectRace CA
LLED WITH INVALID RACE [-1]
L 01/01/2013 - 13:20:31: [SM] Displaying call stack trace for plugin "w3s\War3So
urce_Engine_RaceRestrictions.smx":
L 01/01/2013 - 13:20:31: [SM] [0] Line 26, War3Source_Engine_RaceRestrictions
.sp::OnW3Denyable()