fix: SIGHUP config reload corner cases

[hugoh]

No description provided.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

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

See analysis details on SonarQube Cloud

[deepsource-io]

DeepSource Code Review

We reviewed changes in a3c86f8...01041c4 on this pull request. Below is the summary for the review, and you can see the individual issues we found as inline review comments.

See full review on DeepSource ↗

PR Report Card

Overall Grade

Security   Reliability   Complexity   Hygiene

Code Review Summary

Analyzer	Status	Updated (UTC)	Details
Go		Jun 3, 2026 1:39p.m.	Review ↗
Secrets		Jun 3, 2026 1:39p.m.	Review ↗

---

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 88.16%. Comparing base (a3c86f8) to head (01041c4).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #257   +/-   ##
=======================================
  Coverage   88.16%   88.16%           
=======================================
  Files          19       19           
  Lines         845      845           
=======================================
  Hits          745      745           
  Misses         69       69           
  Partials       31       31           

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