Do we have another solution for the "After cloning a node" event for the Node clone module?
Try to think of a way to better describe what you're trying to do, and for which using that specific event does not work (because of that bug). 

Obviously, it doesn't matter what the subsequent Rules Condition and/or Rules Action would be (after you have "an" alternative for that Rules Event you are asking about).

But sometimes the solution for a problem, is to avoid the problem from happening, right? E.g. maybe there is some specific path you could try to intercept (also using the Rules module), right before/after that event occurred. I seem to remember node clone also has such path. And if anything else fails, use Rules Event "Drupal is initializing", followed by a Rules Condition to check such path (if needed using RegEx also ... I bet you know about that Rules trick also).