more fixes for variant normalization

[danielnachun]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 90.27778% with 14 lines in your changes missing coverage. Please review.
✅ Project coverage is 97.24%. Comparing base (6d8539d) to head (7bdd174).

Files with missing lines	Patch %	Lines
R/sumstatsQc.R	78.68%	13 Missing ⚠️
R/manifestLoaders.R	98.79%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #596      +/-   ##
==========================================
- Coverage   97.26%   97.24%   -0.03%     
==========================================
  Files          67       67              
  Lines       28140    28230      +90     
==========================================
+ Hits        27370    27451      +81     
- Misses        770      779       +9     

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