Fix mismatch between blank builders and their inputs

[dr-orlovsky]

Closes #284

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 12 lines in your changes missing coverage. Please review.

Project coverage is 18.4%. Comparing base (b374468) to head (14ca8d8).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
src/persistence/stock.rs	0.0%	11 Missing ⚠️
src/containers/partials.rs	0.0%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           master    #289     +/-   ##
========================================
- Coverage    18.4%   18.4%   -0.0%     
========================================
  Files          38      38             
  Lines        8705    8706      +1     
========================================
  Hits         1598    1598             
- Misses       7107    7108      +1     

Flag	Coverage Δ
rust	18.4% <0.0%> (-<0.1%)	⬇️

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