Fix malformed JSON in _buildQueryRelational

[juriSacchetta]

Pull Request

• Report security issues confidentially.
• Any contribution is under this license.
• Link this pull request to an issue.

Issue

#939
Closes: #939

Approach

Fix bug in JSON creation when whereMatchesQuery is used.

Tasks

• Add tests
• Add changes to documentation (guides, repository pages, code comments)

[parse-github-assistant]

Thanks for opening this pull request!

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.01 🎉

Comparison is base (bae8902) 39.50% compared to head (4326e04) 39.52%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #943      +/-   ##
==========================================
+ Coverage   39.50%   39.52%   +0.01%     
==========================================
  Files          60       60              
  Lines        3339     3340       +1     
==========================================
+ Hits         1319     1320       +1     
  Misses       2020     2020              

Impacted Files	Coverage Δ
packages/dart/lib/src/network/parse_query.dart	45.28% <100.00%> (+0.20%)	⬆️

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[mbfakourii]

It seems that the tests failed!

It is possible to check the tests