Fix extra fields on findings not saving

[ColonelThirtyTwo]

The extra field was being set in the wrong place in the gql query data.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.36%. Comparing base (37f05c2) to head (d139dc9).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #660   +/-   ##
=======================================
  Coverage   92.36%   92.36%           
=======================================
  Files         342      342           
  Lines       19611    19611           
=======================================
  Hits        18113    18113           
  Misses       1498     1498           

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