Add more issue_764 tests

[ckormanyos]

Add more test depth for #764

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.2%. Comparing base (a116fb8) to head (2175ccb).
⚠️ Report is 3 commits behind head on develop.

Additional details and impacted files

@@            Coverage Diff            @@
##           develop    #772     +/-   ##
=========================================
+ Coverage     96.2%   96.2%   +0.1%     
=========================================
  Files          302     303      +1     
  Lines        29512   29624    +112     
=========================================
+ Hits         28382   28493    +111     
- Misses        1130    1131      +1     

Files with missing lines	Coverage Δ
test/git_issue_764.cpp	100.0% <100.0%> (ø)

... and 4 files with indirect coverage changes

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