This node is a duplicate of another node in the graph and it was created so that the graph can show the node both as an incoming ...

This node is a duplicate of another node in the graph and it was created so that the graph can show the node both as an incoming dependency and an outgoing dependency with respect to the center of the graph.  This node is not editable and is automatically removed when you turn off Butterfly Mode.  If you select this node you will be able to navigate the link to the original node where you can perform edit operations.