First parameter to EVP_MD_CTX_copy should not be initialized

[justsmth]

Description of changes:

• The first parameter of EVP_MD_CTX_copy should not be initialized

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.59%. Comparing base (c358484) to head (342e99b).
Report is 78 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #500      +/-   ##
==========================================
- Coverage   95.80%   92.59%   -3.21%     
==========================================
  Files          61       66       +5     
  Lines        8143     8813     +670     
  Branches        0     8813    +8813     
==========================================
+ Hits         7801     8160     +359     
- Misses        342      396      +54     
- Partials        0      257     +257     

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