Clone Add/Remove Event Trigger

Hopefully this will save others wasted time trying to hack into add/remove clone to trigger your own events.

/* Tie into the un-documented mb_change metabox event
 *  this will only trigger on a clone field with an ID 'event_start'
 *  notice the selector is anything element that starts with this ID
 *  this is required because the add clone event is triggered from
 *. the last cloned element with an unique random ID, something like
 *. event_start_awr34s7wdsh
*/
$(document).on('mb_change', '[id^=event_start]', function(e) {
    if( $(this).prop('id') == 'event_start'){
        console.log('clone was removed');
    }
    else{
        //element id something like: event_start_awr34s7wdsh
        console.log('clone was added');
    }   
});