Features/192 fix alembic filingtype already exists

[nargis-sultani]

closes #192

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Testing

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Checklist

• PR has an informative and human-readable title
• Changes are limited to a single goal (no scope creep)
• Code can be automatically merged (no conflicts)
• Code follows the standards laid out in the development playbook
• Passes all existing automated tests
• Any change in functionality is tested
• New functions are documented (with a description, list of inputs, and expected output)
• Placeholder code is flagged / future todos are captured in comments
• Visually tested in supported browsers and devices (see checklist below 👇)
• Project documentation has been updated (including the "Unreleased" section of the CHANGELOG)
• Reviewers requested with the Reviewers tool ➡️

Testing checklist

Browsers

• Chrome
• Firefox
• Safari
• Internet Explorer 8, 9, 10, and 11
• Edge
• iOS Safari
• Chrome for Android

Accessibility

• Keyboard friendly
• Screen reader friendly

Other

• Is useable without CSS
• Is useable without JS
• Flexible from small to large screens
• No linting errors or warnings
• JavaScript tests are passing

[github-actions]

Coverage report

This PR does not seem to contain any modification to coverable code.

[jcadam14]

Good update to make dealing with enums cleaner