Fix #4186

[matyhtf]

No description provided.

[codecov]

Codecov Report

Merging #4190 (9f05325) into master (63a47f8) will increase coverage by 0.05%.
The diff coverage is 83.33%.

❗ Current head 9f05325 differs from pull request most recent head 404e52a. Consider uploading reports for the commit 404e52a to get more accurate results

@@            Coverage Diff             @@
##           master    #4190      +/-   ##
==========================================
+ Coverage   50.13%   50.18%   +0.05%     
==========================================
  Files          71       71              
  Lines       14266    14266              
==========================================
+ Hits         7152     7160       +8     
+ Misses       7114     7106       -8     

Impacted Files	Coverage Δ
src/core/channel.cc	71.84% <83.33%> (ø)
src/os/wait.cc	74.11% <0.00%> (-7.06%)	⬇️
src/server/port.cc	50.27% <0.00%> (+0.27%)	⬆️
src/os/async_thread.cc	69.29% <0.00%> (+0.43%)	⬆️
src/os/process_pool.cc	60.63% <0.00%> (+2.93%)	⬆️

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