wrapped dojo require to work around addOnLoad issue in xd when the module has already been loaded

dynrequire.js

// check to see if this loaded module already exists.  Returns a deferred that will already be resolved or
// or will resolve with an addOnLoad after the require

var dynrequire = function(names){
   var def = new dojo.Deferred();
   var loading=false;
   dojo.forEach(names, function(n){
       if (!dojo._loadedModules[n]){
           dojo.require(n);
           loading=true;
       }
   });

   if (!loading){
       def.resolve(true);
   }else{
       dojo.addOnLoad(function(){
          def.resolve(true);
       });
   }
   return def.promise;
}

//then something like this:
dojo.when(dynrequire('foo.bar'), function(){
   /* whatever */
});