Problem: negative coin amount error when query supply liquid of non BaseCoinUnit

[mmsqe]

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Thank you for your code, it's appreciated! :)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 34.17%. Comparing base (d1d09c9) to head (7d46453).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1099      +/-   ##
==========================================
+ Coverage   34.15%   34.17%   +0.01%     
==========================================
  Files         101      101              
  Lines       17319    17324       +5     
==========================================
+ Hits         5915     5920       +5     
  Misses      10453    10453              
  Partials      951      951              

Flag	Coverage Δ
integration_tests	23.91% <100.00%> (+0.02%)	⬆️
integration_tests_byzantine	10.95% <0.00%> (-0.01%)	⬇️
integration_tests_gov	11.20% <0.00%> (-0.01%)	⬇️
integration_tests_grpc	11.20% <0.00%> (-0.01%)	⬇️
integration_tests_ibc	26.51% <100.00%> (+0.84%)	⬆️
integration_tests_ledger	11.18% <0.00%> (-0.01%)	⬇️
integration_tests_slow	11.18% <0.00%> (-0.01%)	⬇️
integration_tests_solomachine	10.98% <0.00%> (-0.01%)	⬇️
integration_tests_upgrade	11.20% <0.00%> (-0.01%)	⬇️
unit_tests	11.64% <0.00%> (-0.01%)	⬇️

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