fix comparing naive and aware

[noviluni]

This is a workaround to fix this: #679 and this: #491

However it's necessary to test it properly before merging it.

[codecov]

Codecov Report

Merging #736 into master will decrease coverage by 0.03%.
The diff coverage is 85.71%.

@@            Coverage Diff             @@
##           master     #736      +/-   ##
==========================================
- Coverage   95.34%   95.31%   -0.04%     
==========================================
  Files         304      304              
  Lines        2622     2625       +3     
==========================================
+ Hits         2500     2502       +2     
- Misses        122      123       +1     

Impacted Files	Coverage Δ
dateparser/parser.py	98.67% <85.71%> (-0.26%)	⬇️
dateparser/languages/dictionary.py	99.33% <0.00%> (ø)
dateparser/languages/validation.py	93.86% <0.00%> (ø)

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[noviluni]

related to this: #814