test(core): Add tests for endless execution issue

[ivov]

The first test ("itemless case") was originally added here but likely removed on accident.

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (b203665) 33.50% compared to head (d84eaae) 33.50%.

Additional details and impacted files

@@                                   Coverage Diff                                   @@
##           help-353-endless-executions-for-cloud-user-rentslam    #7420      +/-   ##
=======================================================================================
- Coverage                                                33.50%   33.50%   -0.01%     
=======================================================================================
  Files                                                     3389     3389              
  Lines                                                   207020   207020              
  Branches                                                 22339    22338       -1     
=======================================================================================
- Hits                                                     69366    69359       -7     
- Misses                                                  136533   136540       +7     
  Partials                                                  1121     1121              

see 5 files with indirect coverage changes

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[github-actions]

⚠️ Some Cypress E2E specs are failing, please fix them before merging