fix: null value not persisted for JSON, Any, Object types (v4)

[achrinza]

I don't have enough familiarity with the codebase to write the necessary tests; We can put it into the backlog or someone else can help write and push some tests onto this branch :)

fixes #1895

Signed-off-by: Rifa Achrinza 25147899+achrinza@users.noreply.github.com

Checklist

• Sign off your commits with DCO (Developer Certificate of Origin)
• npm test passes on your machine
• New tests added or existing tests modified to cover all changes
• Code conforms with the style guide
• Commit messages are following our guidelines

[coveralls]

Pull Request Test Coverage Report for Build 1226264821

• -4 of 4 (0.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.02%) to 84.733%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
lib/dao.js	0	4	0.0%

Totals
Change from base Build 1223745102:	-0.02%
Covered Lines:	7159
Relevant Lines:	8150

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 1226264821

• 0 of 4 (0.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.01%) to 84.741%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
lib/dao.js	0	4	0.0%

Totals
Change from base Build 1223745102:	-0.01%
Covered Lines:	7159
Relevant Lines:	8150

---

💛 - Coveralls

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[siimsams]

We have the same issue. This solves it. What is needed for this to be merged?