fix(chord): fix bad logic for checking if dataset project changed

[davidlougheed]

adds a test which catches this (and fixes some assert patterns in that test file.)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.90%. Comparing base (06699e2) to head (4606a8b).
Report is 2 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #544   +/-   ##
========================================
  Coverage    90.90%   90.90%           
========================================
  Files          127      127           
  Lines         4893     4893           
  Branches       693      693           
========================================
  Hits          4448     4448           
  Misses         299      299           
  Partials       146      146           

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[gsfk]

works as expected, thanks (I didn't look at the tests)