Fix / Missing locked balances

[scorpioborn]

Description

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Type of change

Please check the options that are relevant. This PR introduces

• Patch: Bug fix (non-breaking change which fixes an existing issue)
• Minor: New feature (non-breaking change which adds new functionality)
• Major: Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Features Description

• NA

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Test Cases

• NA

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Documentation

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Checklist:

• I have added change type (major|minor|patch) in the PR
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

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[codecov-commenter]

Codecov Report

Attention: Patch coverage is 32.12435% with 131 lines in your changes are missing coverage. Please review.

Project coverage is 11.60%. Comparing base (8fbca35) to head (e7d167e).

Files	Patch %	Lines
x/subaccount/types/query.pb.go	0.00%	71 Missing ⚠️
x/orderbook/types/query.pb.gw.go	0.00%	10 Missing ⚠️
x/subaccount/keeper/balance.go	81.08%	4 Missing and 3 partials ⚠️
x/orderbook/types/query.pb.go	0.00%	5 Missing ⚠️
x/reward/types/reward.go	0.00%	5 Missing ⚠️
x/subaccount/keeper/subaccount.go	66.66%	4 Missing ⚠️
x/reward/types/reward_signup.go	0.00%	3 Missing ⚠️
x/reward/types/reward_signup_affiliatee.go	0.00%	3 Missing ⚠️
x/reward/types/reward_signup_affiliator.go	0.00%	3 Missing ⚠️
x/reward/types/reward_signup_referee.go	0.00%	3 Missing ⚠️
... and 9 more

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #372      +/-   ##
==========================================
- Coverage   11.63%   11.60%   -0.03%     
==========================================
  Files         351      351              
  Lines       45621    45689      +68     
==========================================
- Hits         5307     5304       -3     
- Misses      39834    39905      +71     
  Partials      480      480              

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