update yoga

src/node.cpp

@@ -124,7 +124,8 @@ kEventResult Node::on_event(Event* e)
 
     if (!skip_children)
     {
-        for (auto it = m_children.rbegin(); it != m_children.rend(); ++it)
+        auto children_copy = m_children; // make a copy for safety
+        for (auto it = children_copy.rbegin(); it != children_copy.rend(); ++it)
         {
             if ((*it)->on_event(e) == kEventResult::Consumed)
             {
@@ -534,6 +535,7 @@ Node&& Node::operator=(Node&& o)
 Node::Node()
 {
     y_node = YGNodeNew();
+    YGNodeSetContext(y_node, this);
     y_placeholder = nullptr;
 }