[BUG] inverse transform doesn't affect quantiles

[martins0n]

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Type of Change

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Proposed Changes

Related Issue

Closing issues

closes #376

[codecov-commenter]

Codecov Report

Merging #395 (87a3004) into master (e884f8a) will decrease coverage by 34.29%.
The diff coverage is 18.00%.

@@             Coverage Diff             @@
##           master     #395       +/-   ##
===========================================
- Coverage   87.02%   52.73%   -34.30%     
===========================================
  Files          98       99        +1     
  Lines        4964     5014       +50     
===========================================
- Hits         4320     2644     -1676     
- Misses        644     2370     +1726     

Impacted Files	Coverage Δ
etna/transforms/sklearn.py	29.03% <9.09%> (-66.75%)	⬇️
etna/transforms/add_constant.py	61.90% <20.00%> (-35.40%)	⬇️
etna/transforms/change_points_trend.py	40.95% <20.00%> (-58.05%)	⬇️
etna/transforms/detrend.py	41.66% <20.00%> (-56.52%)	⬇️
etna/transforms/log.py	60.86% <20.00%> (-36.70%)	⬇️
etna/transforms/stl.py	61.19% <20.00%> (-32.36%)	⬇️
etna/transforms/utils.py	66.66% <66.66%> (ø)
etna/commands/__init__.py	0.00% <0.00%> (-100.00%)	⬇️
etna/commands/backtest_command.py	0.00% <0.00%> (-96.43%)	⬇️
etna/commands/forecast_command.py	0.00% <0.00%> (-92.00%)	⬇️
... and 66 more

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