Fix the number of transactions added by Sphere graph builder

[Auriga2]

Prerequisites

• Reviewed the checklist

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  debugged by adding the label "verbose logging" to the GitHub PR.

Description of the Change

Fixed the Sphere graph builder which was creating extra transactions than the user specified.
39 additional transactions were added when Explicit loops option is unchecked. Otherwise 43 additional transactions were added.

Alternate Designs

Why Should This Be In Core?

Benefits

Possible Drawbacks

Verification Process

• Open consty and create a new empty graph
• Experimental->Build Graph->Sphere Graph Builder
• Change "Number of Transactions" to any value, keeping other options with default values, then click "Build"
• Verify the created graph has no 43 extra transactions, visible in the bottom right corner of constellation.
• Uncheck "Explicit loops" and repeat. Verify 39 additional transactions are not added.

Applicable Issues

#2478

[sonarqubecloud]

Quality Gate failed

Failed conditions
0.0% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube Cloud

[antares1470]

Ran the sphere graph builder 3 times, with the default 100 nodes and 50 transactions

• the 1st run it made a graph with 42 transactions
• the 2nd run it made a graph with 50 transactions
• the 3rd run it made a graph with 25 transactions

So there might be something wrong with how its creating transactions