fix regression not interpreting recall feedback correctlty

code/tc.preset.js

@@ -783,8 +783,7 @@ function recall() {
         is_interpolating = 0;
         set_active_slot(args[0]);
         outlet(0, 'recall', args[0]);
-	} else if (args.length == 2) {
+	} else if (args.length == 3) {
-		if (typeof(args[0]) == 'number') {
         var src_slot = args[0];
         var trg_slot = args[1];
 
@@ -830,17 +829,11 @@ function recall() {
                 slots[trg_slot].interp = interp;
                 is_interpolating = 1;
                 active_slot = 0;
-                    // set_active_slot(0);
             }
 
             outlet(0, "recall", src_slot, trg_slot, interp);
         }
 	}
-        // else {
-        //     //typeof(args[0]) == 'string', so user just recalled a single parameter.
-        // }
-        
-	}
 	
 	mgraphics.redraw();
 }