Updates tests for converter idempotency

[bashir2]

Description of what I changed

Fixes #1003.

E2E test

TESTED:

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Checklist: I completed these to help reviewers :)

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• [x] I have added tests to cover my changes. (If you refactored existing code that was well tested you do not have to add tests)

• [x] I ran mvn clean package right before creating this pull request and added all formatting changes to my commit.

• [x] All new and existing tests passed.

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