(fix) O3-4064 - Enhance Support for Marking Fields as Unspecified

[samuelmale]

Requirements

• This PR has a title that briefly describes the work done including the ticket number. If there is a ticket, make sure your PR title includes a conventional commit label. See existing PR titles for inspiration.
• My work conforms to the OpenMRS 3.0 Styleguide and design documentation.
• My work includes tests or is validated by existing tests.

Summary

Fixes a couple bugs and adds tests coverage around the support of unspecified fields.

Screenshots

Related Issue

https://openmrs.atlassian.net/browse/O3-4064

Other

[github-actions]

Size Change: -50 B (0%)

Total Size: 1.22 MB

ℹ️ View Unchanged

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dist/751.js	252 kB	-25 B (-0.01%)
dist/901.js	11.8 kB	0 B
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dist/993.js	3.09 kB	0 B
dist/main.js	342 kB	-25 B (-0.01%)
dist/openmrs-esm-form-engine-lib.js	3.67 kB	0 B

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[pirupius]

LGTM