MEX-327: fix 'NaN' when 0 votes

[dragos-rebegea]

Reasoning

• fix 'NaN' values when 0 votes

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (7bf575e) 56.38% compared to head (6e28a5d) 56.38%.

Additional details and impacted files

@@                 Coverage Diff                 @@
##           feat/governance-v2    #1107   +/-   ##
===================================================
  Coverage               56.38%   56.38%           
===================================================
  Files                     233      233           
  Lines                    7748     7748           
  Branches                  518      518           
===================================================
  Hits                     4369     4369           
  Misses                   2936     2936           
  Partials                  443      443           

Flag	Coverage Δ
unittests	56.38% <ø> (ø)

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[gabrielmatei]

fixed in #1115