Tweak for data import

[SchrodingersGat]

• Do not override specified default values

[netlify]

✅ Deploy Preview for inventree-web-pui-preview canceled.

Name	Link
🔨 Latest commit	654ccd0
🔍 Latest deploy log	https://app.netlify.com/sites/inventree-web-pui-preview/deploys/679e9ba0fa7447000893bc21

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.57%. Comparing base (c077e2b) to head (654ccd0).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #9010   +/-   ##
=======================================
  Coverage   85.57%   85.57%           
=======================================
  Files        1176     1176           
  Lines       52005    52005           
  Branches     2112     2112           
=======================================
  Hits        44502    44502           
  Misses       6970     6970           
  Partials      533      533           

Flag	Coverage Δ
backend	87.34% <100.00%> (ø)

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