Move registerHooks to onExtensionRegistration to prevent logspam

[Sophivorus]

See #794

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (8eb978e) 40.10% compared to head (088aa77) 40.10%.
Report is 1 commits behind head on master.

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Additional details and impacted files

@@            Coverage Diff            @@
##             master     #805   +/-   ##
=========================================
  Coverage     40.10%   40.10%           
  Complexity     2332     2332           
=========================================
  Files            78       78           
  Lines          8248     8248           
=========================================
  Hits           3308     3308           
  Misses         4940     4940           

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