Fix part cache not update when add new node

src/skeletondocument.cpp

@@ -273,6 +273,9 @@ QUuid SkeletonDocument::createNode(float x, float y, float z, float radius, QUui
         partId = fromNode->partId;
         if (isPartReadonly(partId))
             return QUuid();
+        auto part = partMap.find(partId);
+        if (part != partMap.end())
+            part->second.dirty = true;
     }
     SkeletonNode node;
     node.partId = partId;

src/skeletondocument.h

@@ -160,6 +160,7 @@ public:
         hasColor = other.hasColor;
         wrapped = other.wrapped;
         componentId = other.componentId;
+        dirty = other.dirty;
     }
     void updatePreviewMesh(MeshLoader *previewMesh)
     {