Crash when using builtin reduce _stats

[Yue Chuan Lim]

Fairly standard map/reduce function, map looks something like

function(doc) {
  if(doc.data[12] > 0) {
    key = doc._id.split("|")[0];
    emit(key, doc.data[12]);
  }
}

Data returned by map is along the lines of: ("test1", 123), ("test1", 245).

Reduce is just: _stats

Crash log: http://pastebin.com/aX7jeeLm
Platform: Windows 7 (32-bit)

Using the installer by Mark Hammond. Incidentally, is the installer on
couch.io the preferred one for windows deployment?

Thanks