fix distribution invariant

[zjg555543]

• Targeted PR against correct branch (see CONTRIBUTING.md)

• [ ] Linked to github-issue with discussion and accepted design OR link to spec that describes this work.

• [ ] Wrote tests

• [ ] Updated relevant documentation (docs/)

• [ ] Added a relevant changelog entry to the Unreleased section in CHANGELOG.md

• [ ] Reviewed Files changed in the github PR explorer

---

For Admin Use:

• Added appropriate labels to PR (ex. wip, ready-for-review, docs)
• Reviewers Assigned
• Squashed all commits, uses message "Merge PR #XYZ: [title]" (coding standards)

[codecov-commenter]

Codecov Report

Merging #3103 (3b1aa56) into dev (b7f3994) will decrease coverage by 0.01%. The diff coverage is 75.00%.

:exclamation: Current head 3b1aa56 differs from pull request most recent head 0bf721b. Consider uploading reports for the commit 0bf721b to get more accurate results

:mega: This organization is not using Codecov’s GitHub App Integration. We recommend you install it so Codecov can continue to function properly for your repositories. Learn more

@@            Coverage Diff             @@
##              dev    #3103      +/-   ##
==========================================
- Coverage   35.90%   35.90%   -0.01%     
==========================================
  Files         434      434              
  Lines       45786    45788       +2     
==========================================
- Hits        16441    16439       -2     
- Misses      28154    28156       +2     
- Partials     1191     1193       +2     

Impacted Files	Coverage Δ
x/distribution/keeper/invariants.go	83.01% <75.00%> (-3.26%)	:arrow_down:

... and 1 file with indirect coverage changes

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.