[gamepad] Fix repeated spell casting getting stuck if there is no target

Source/controls/plrctrls.h

@@ -72,6 +72,7 @@ void PerformPrimaryAction();
 
 // Open chests, doors, pickup items.
 void PerformSecondaryAction();
+void UpdateSpellTarget(spell_id spell);
 bool TryDropItem();
 void InvalidateInventorySlot();
 void FocusOnInventory();

Source/track.cpp

@@ -97,7 +97,10 @@ void RepeatMouseAction()
 			NetSendCmdParam1(true, rangedAttack ? CMD_RATTACKPID : CMD_ATTACKPID, pcursplr);
 		break;
 	case MouseActionType::Spell:
-		CheckPlrSpell(true);
+		if (ControlMode != ControlTypes::KeyboardAndMouse) {
+			UpdateSpellTarget(MyPlayer->_pRSpell);
+		}
+		CheckPlrSpell(ControlMode == ControlTypes::KeyboardAndMouse);
 		break;
 	case MouseActionType::SpellMonsterTarget:
 		if (pcursmonst != -1)