Cytoscape: Hidden nodes are rendered at visualization openning.

[jecisc]

For example:

| visualization secondNode firstNode thirdNode |
	visualization := TLVisualization new.
	visualization layout: (TLLinearLayout gap: 50).
	firstNode := visualization addNodeFromEntity: 2.
	secondNode := visualization addNodeFromEntity: 1.
	secondNode styleSheet nodeLabel: 'Click on me!' position: #top.
	thirdNode := visualization addNodeFromEntity: 3.
	thirdNode hide.
	secondNode
		addInteractions:
			{(TLHideAction on: firstNode) onClick.
			(TLShowAction on: thirdNode) onClick}.
	^ visualization

Here the visibility of thirdNode is set to false but the node appears during the rendering.