Fix inplace modification of data during data definition (resolves #943)

[gkirgizov]

resolves #943

[codecov]

Codecov Report

Merging #950 (6b8f274) into master (c66d718) will decrease coverage by 0.43%.
The diff coverage is 81.81%.

@@            Coverage Diff             @@
##           master     #950      +/-   ##
==========================================
- Coverage   88.57%   88.13%   -0.44%     
==========================================
  Files         205      205              
  Lines       13415    13320      -95     
==========================================
- Hits        11882    11740     -142     
- Misses       1533     1580      +47     

Impacted Files	Coverage Δ
fedot/api/api_utils/data_definition.py	85.33% <77.77%> (+0.19%)	⬆️
fedot/api/api_utils/api_data.py	86.20% <100.00%> (-0.24%)	⬇️
fedot/api/main.py	81.11% <100.00%> (-0.11%)	⬇️
...lementations/data_operations/ts_transformations.py	79.52% <0.00%> (-12.00%)	⬇️
fedot/explainability/explainer_template.py	75.00% <0.00%> (-5.00%)	⬇️
fedot/core/pipelines/tuning/hyperparams.py	91.48% <0.00%> (-2.39%)	⬇️
...implementations/data_operations/sklearn_filters.py	94.49% <0.00%> (-1.84%)	⬇️
fedot/core/repository/tasks.py	72.72% <0.00%> (-1.56%)	⬇️
fedot/core/caching/base_cache.py	66.66% <0.00%> (-1.52%)	⬇️
fedot/core/data/multi_modal.py	84.37% <0.00%> (-1.21%)	⬇️
... and 47 more

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