Fix: annotator attributes languages filter

[syphax-bouazzouni]

fix #154

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.64%. Comparing base (6d7643f) to head (1b323bc).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #155   +/-   ##
=======================================
  Coverage   73.64%   73.64%           
=======================================
  Files          53       53           
  Lines        2944     2944           
=======================================
  Hits         2168     2168           
  Misses        776      776           

Flag	Coverage Δ
unittests	73.64% <100.00%> (ø)

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