[PEAK] Legacy code in events.Observable ?

[ilja]

Hi.

I've recently was working with disabling/enabling events, and found one 
strange thing in implementation of event buffering (when event source is 
in `disabled` state).

The `Observable._buffer` method contains strange code:
{{{
...
     elif len(saved)>=len(self._callbacks):
         raise ValueError("Can't buffer event", self, event)
...
}}}

Does it have any purpose?
And if Yes than why such limitations are applied?

-- 
   Ilya