[MOD-2286] Ti.Facebook iOS: Sending Ti.Blob's in requestWithGraphPath throws mutating-error

   var fb = require("facebook");
   fb.initialize();
   
   var win = Ti.UI.createWindow({
       backgroundColor: "#fff"
   });
   var btn = Ti.UI.createButton({
       title: (fb.loggedIn) ? "Request write permissions and submit" : "Login"
   });
    
   btn.addEventListener("click", function() {
       if (fb.loggedIn) {
           requestPublishPermissions();
       } else {
           fb.permissions = ['email'];
           fb.authorize();
       }
   });
    
   fb.addEventListener("login", function(_e) {
       if (!_e.success) {
           btn.setTitle("Login");
           Ti.API.error("Login cancelled/failed!");
           Ti.API.error(_e);
           return;
       } else {
           Ti.API.info("Login succeeded");
           btn.setTitle("Request write permissions and submit");
       }        
   });
   
   function requestPublishPermissions() {
       fb.requestNewPublishPermissions(['publish_actions'], fb.AUDIENCE_ONLY_ME, function(e) {
           if (!e.success) {
               alert("Publish permissions denied!");
               return;
           }
                   
           var blob = Ti.UI.createView({
               width: 500,
               height: 500,
               backgroundColor: "green"
           }).toImage();
           
           var args = {
               picture: blob,
               caption: "Great green view"
           };
           
           fb.requestWithGraphPath('me/photos', args, "POST", showRequestResult);
       });
   
   }
   
   function showRequestResult(e) {
       alert("Photo has been submitted, check your facebook photo album");
       Ti.API.info(e);
   }
    
   win.add(btn);
   win.open();