Fix check-ref wrong results

[aguschin]

close #200

[codecov-commenter]

Codecov Report

Merging #201 (43fb67d) into main (eecb005) will increase coverage by 0.30%.
The diff coverage is 86.66%.

@@            Coverage Diff             @@
##             main     #201      +/-   ##
==========================================
+ Coverage   83.26%   83.57%   +0.30%     
==========================================
  Files          16       16              
  Lines        1494     1516      +22     
==========================================
+ Hits         1244     1267      +23     
+ Misses        250      249       -1     

Impacted Files	Coverage Δ
gto/cli.py	73.86% <0.00%> (ø)
gto/api.py	72.38% <71.42%> (-0.62%)	⬇️
gto/registry.py	91.04% <90.90%> (+0.56%)	⬆️
gto/base.py	86.09% <100.00%> (-1.33%)	⬇️
gto/config.py	94.68% <100.00%> (+0.42%)	⬆️
gto/tag.py	89.93% <100.00%> (+3.31%)	⬆️

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