Bonus system: add treeHasChanged call where bonus objects changed

lib/CArtHandler.cpp

@@ -694,6 +694,7 @@ void CArtHandler::afterLoadFinalization()
 			bonus->sid = art->id;
 		}
 	}
+	CBonusSystemNode::treeHasChanged();
 
 	for (CArtifact * art : artifacts)
 	{

lib/CCreatureHandler.cpp

@@ -140,6 +140,7 @@ void CCreature::setId(CreatureID ID)
 		if(bonus->source == Bonus::CREATURE_ABILITY)
 			bonus->sid = ID;
 	}
+	CBonusSystemNode::treeHasChanged();
 }
 
 static void AddAbility(CCreature *cre, const JsonVector &ability_vec)

lib/mapObjects/CArmedInstance.cpp

@@ -96,6 +96,7 @@ void CArmedInstance::updateMoraleBonusFromArmy()
 		b->description = b->description.substr(0, b->description.size()-2);//trim value
 	}
 	boost::algorithm::trim(b->description);
+	CBonusSystemNode::treeHasChanged();
 
 	//-1 modifier for any Undead unit in army
 	const ui8 UNDEAD_MODIFIER_ID = -2;

lib/mapObjects/CGHeroInstance.cpp

@@ -831,6 +831,7 @@ void CGHeroInstance::updateSkill(SecondarySkill which, int val)
 		addNewBonus(bonus);
 	}
 
+	CBonusSystemNode::treeHasChanged();
 }
 void CGHeroInstance::setPropertyDer( ui8 what, ui32 val )
 {
@@ -1365,6 +1366,7 @@ void CGHeroInstance::setPrimarySkill(PrimarySkill::PrimarySkill primarySkill, si
 		{
 			skill->val += value;
 		}
+		CBonusSystemNode::treeHasChanged();
 	}
 	else if(primarySkill == PrimarySkill::EXPERIENCE)
 	{

lib/mapObjects/CGTownInstance.cpp

@@ -864,7 +864,10 @@ void CGTownInstance::updateMoraleBonusFromArmy()
 	}
 
 	if (garrisonHero)
+	{
 		b->val = 0;
+		CBonusSystemNode::treeHasChanged();
+	}
 	else
 		CArmedInstance::updateMoraleBonusFromArmy();
 }