use parentChanged to recalculate entity bounding boxes

libraries/entities/src/EntityItem.cpp

@@ -1324,6 +1324,12 @@ void EntityItem::forSelfAndEachChildEntity(std::function<void(EntityItemPointer)
     }
 }
 
+void EntityItem::parentChanged() {
+    forSelfAndEachChildEntity([&](EntityItemPointer entity) {
+        entity->requiresRecalcBoxes();
+    });
+}
+
 void EntityItem::updatePosition(const glm::vec3& value) {
     if (shouldSuppressLocationEdits()) {
         return;

libraries/entities/src/EntityItem.h

@@ -398,6 +398,7 @@ protected:
     void setActionDataInternal(QByteArray actionData);
 
     void forSelfAndEachChildEntity(std::function<void(EntityItemPointer)> actor);
+    virtual void parentChanged();
 
     static bool _sendPhysicsUpdates;
     EntityTypes::EntityType _type;

libraries/shared/src/SpatiallyNestable.cpp

@@ -71,7 +71,7 @@ SpatiallyNestablePointer SpatiallyNestable::getParentPointer() const {
     }
 
     if (parent || _parentID.isNull()) {
-        parentChanged();
+        thisPointer->parentChanged();
     }
 
     return parent;

libraries/shared/src/SpatiallyNestable.h

@@ -92,7 +92,7 @@ protected:
     virtual void forgetChild(SpatiallyNestablePointer newChild) const;
     mutable QHash<QUuid, SpatiallyNestableWeakPointer> _children;
 
-    virtual void parentChanged() const {} // called when parent pointer is updated
+    virtual void parentChanged() {} // called when parent pointer is updated
 
 private:
     Transform _transform; // this is to be combined with parent's world-transform to produce this' world-transform.