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PR Type
What kind of change does this PR introduce?
What is the current behavior?
Tests fail due to inconsistent transaction state.
Issue Number: #75
What is the new behavior?
Tests work due to restructured transaction test.
Other information
One might argue that the state that was left behind from the transaction test should be fixed as part of the entire test case. That the "stack" (static) class variable of the Transaction class should not be there. For now this fixes the problem and future design improvements can focus on removing the class-wide variable in a way that allows for easy testing and (more) reliable execution.