I've found that CDOResourceImpl.isLoaded() returns false most of the
time (I haven't actually ever got a true). When is supposed a
CDOResource to be considered loaded? I was expecting that, once I
retrieve some part of the content of the resource, this method would
return true. Furthermore, if ResourceSet.getResource() is successfully
invoked with loadOnDemand to true, shouldn't isLoaded() return true?