GraphPointerException occurs when nesting graph within itself

Steps to repro:
1. Create a new Project
2. Project window > Right-click > Create
3. Visual Scripting > Script Graph > Edit graph
4. Drag and drop Script Graph asset from project window to Script Graph window
5. Sample Scene > Select the Main Camera > Add component > Script Machine
6. Drag and drop Script Graph asset from the Project window to Script Machine Component under Graph property
7. Play Scene

Actual Result:
GraphPointerException appears in the console

Expected Result:
The user is not allowed to create cyclic Script Graphs

Reproducible on: 2021.2.0a3, 2021.1.0b5, 2021.1.0b1

Note: Visual Scripting was introduced in 2021.1.0b1

Package Version 1.5.1-pre.3

Environment:
Windows 10

Stack Trace:
GraphPointerException: Max recursion depth of 100 has been exceeded. Are you nesting a graph within itself?
If not, consider increasing 'Recursion.defaultMaxDepth'.
[ GameObject > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... > SuperUnit#ad936... >