Fix test case failure after hardening the promote master behavior

[git-hulk]

This issue was introduced by PR #340.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 47.30%. Comparing base (6c56470) to head (9999df4).
⚠️ Report is 87 commits behind head on unstable.

Additional details and impacted files

@@             Coverage Diff              @@
##           unstable     #354      +/-   ##
============================================
+ Coverage     43.38%   47.30%   +3.91%     
============================================
  Files            37       45       +8     
  Lines          2971     4452    +1481     
============================================
+ Hits           1289     2106     +817     
- Misses         1544     2136     +592     
- Partials        138      210      +72     

Flag	Coverage Δ
unittests	47.30% <100.00%> (+3.91%)	⬆️

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