nothing

src/main/java/forge/game/player/HumanPlay.java

@@ -219,7 +219,6 @@ public class HumanPlay {
                 }
             }
             boolean x = sa.getSourceCard().getManaCost().getShardCount(ManaCostShard.X) > 0;
-    
             game.getStack().add(sa, x);
         }
     }

src/main/java/forge/gui/GuiDisplayUtil.java

@@ -40,7 +40,6 @@ import forge.CardCharacteristicName;
 import forge.CardLists;
 import forge.CardPredicates;
 import forge.CounterType;
-import forge.FThreads;
 import forge.Singletons;
 import forge.card.spellability.AbilityManaPart;
 import forge.card.spellability.SpellAbility;
@@ -433,7 +432,7 @@ public final class GuiDisplayUtil {
                     // Human player is choosing targets for an ability controlled by chosen player. 
                     sa.setActivatingPlayer(p);
                     HumanPlay.playSaWithoutPayingManaCost(game, sa);
-                    game.getInputQueue().updateObservers();
+                    game.getInputQueue().updateObservers(); // priority can be on AI side, need this update for that case
                 }
             });
         }