avoid NPE when right clicking during draft

Signed-off-by: Jamin W. Collins <jamin.collins@gmail.com>

forge-gui-desktop/src/main/java/forge/screens/deckeditor/controllers/ACEditorBase.java

@@ -257,7 +257,11 @@ public abstract class ACEditorBase<TItem extends InventoryItem, TModel extends D
     public abstract DeckController<TModel> getDeckController();
 
     protected Deck getHumanDeck() {
-        return getDeckController().getModel().getHumanDeck();
+        try {
+            return getDeckController().getModel().getHumanDeck();
+        } catch (NullPointerException ex) {
+            return null;
+        }
     }
 
     /**