Model not loading

[eluser]MurkeyDismal[/eluser]
The model function in the Loader has been changed from

Code:

foreach ($model as $class)
{
  $this->model($class);
}
return;

to

Code:

foreach ($model as $key => $value)
{
  $this->model(is_int($key) ? $value : $key, $value);
}
return;

consequently my models do not load, however if I revert the code they do. I have not changed the autoload in the config. Can anybody suggest what I may have missed.