Resolve duplicate events from stored state on Zino startup

[lunkwill42]

Scope and purpose

Fixes #488

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 22s ⏱️
  738 tests   738 ✅ 0 💤 0 ❌
2 856 runs  2 852 ✅ 4 💤 0 ❌

Results for commit c70722b.

[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 96.25%. Comparing base (3eaa304) to head (c70722b).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #489      +/-   ##
==========================================
+ Coverage   96.22%   96.25%   +0.03%     
==========================================
  Files          53       53              
  Lines        4022     4057      +35     
==========================================
+ Hits         3870     3905      +35     
  Misses        152      152              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.