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Found in

2019.1.0a1

2019.1.8f1

2019.2.0a1

2019.3.0a1

Issue ID

1165438

Regression

No

[GraphView] IEdgeConnectorListener.OnDrop() is called even when there is already an edge connection and port capacity is single

Graph Tools Foundation

-

How to reproduce:
1. Open the user-submitted project ("GraphViewPractice.zip")
2. Go to "MyGraph" -> "Open Window"
3. In the newly opened graph window connect "Node 1" output to "Node 3" input
4. Observe the OnDrop debug log in the console when connecting nodes
5. Without detaching the nodes connect "Node 1" output to "Node 3 input again
6. Observe the console

Expected result: IEdgeConnectorListener.OnDrop() is not called and no debug log is shown
Actual result: IEdgeConnectorListener.OnDrop() is called regardless whether the edge connection is already made and an OnDrop debug log is thrown

Reproduced in: 2019.3.0a7, 2019.2.0b8, 2019.1.8f1,
Couldn't test with: 2018.4.3f1, 2017.4.28f1 (Breaks the project)

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