Stop considering closed events as duplicates of open events in Events.commit()

[lunkwill42]

Scope and purpose

Fixes #481

Contributor Checklist

Every pull request should have this checklist filled out, no matter how small it is.
More information about contributing to Zino can be found in the
README.

• Added a changelog fragment for towncrier
• Added/amended tests for new/changed code
• Added/changed documentation
• Linted/formatted the code with ruff, easiest by using pre-commit
• The first line of the commit message continues the sentence "If applied, this commit will ...", starts with a capital letter, does not end with punctuation and is 50 characters or less long. See https://cbea.ms/git-commit/
• If applicable: Created new issues if this PR does not fix the issue completely/there is further work to be done

[github-actions]

Test results

    4 files      4 suites   2m 6s ⏱️
  705 tests   705 ✅ 0 💤 0 ❌
2 724 runs  2 720 ✅ 4 💤 0 ❌

Results for commit 73fec60.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.77%. Comparing base (7c40336) to head (73fec60).
⚠️ Report is 4 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #482   +/-   ##
=======================================
  Coverage   98.77%   98.77%           
=======================================
  Files          83       83           
  Lines       10109    10110    +1     
=======================================
+ Hits         9985     9986    +1     
  Misses        124      124           

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