Fix stale read in CreateClassifications

Closes #508 (closed)

Codecov Report

Merging #1046 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1046   +/-   ##
=======================================
  Coverage   87.88%   87.88%           
=======================================
  Files         235      235           
  Lines       15193    15193           
=======================================
  Hits        13352    13352           
  Misses       1841     1841           

Impacted Files	Coverage Δ
arkindex/documents/serializers/ml.py	100.00% <ø> (ø)

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added 9 commits

• 24503ed7...70805c95 - 8 commits from branch master
• 6324550c - Fix stale read in CreateClassifications

Compare with previous version

resolved all threads

enabled an automatic merge when the pipeline for 6324550c succeeds

mentioned in commit a4df184e

merged