REST bank transfers fail due to encoding.

[jgimeno]

Bank module REST endpoint bank/accounts/{addr}/transfers was returning invalid StdTx format.

closes: #XXXX

---

Before we can merge this PR, please make sure that all the following items have been
checked off. If any of the checklist items are not applicable, please leave them but
write a little note why.

• 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.
• Code follows the module structure standards.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/)
• Added relevant godoc comments.
• Added a relevant changelog entry to the Unreleased section in CHANGELOG.md
• Re-reviewed Files changed in the Github PR explorer

[codecov]

Codecov Report

Merging #6536 into master will increase coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #6536      +/-   ##
==========================================
+ Coverage   56.83%   56.84%   +0.01%     
==========================================
  Files         481      481              
  Lines       28911    28921      +10     
==========================================
+ Hits        16432    16441       +9     
+ Misses      11316    11314       -2     
- Partials     1163     1166       +3     

[jgimeno]

@aaronc I created the test, with the fix you included in #6467 it passes. You can close your PR, I will include the fix here apart from the test.

[alexanderbez]

ACK 🎉

[aaronc]

I don't think this bug fix entry is actually needed because it wasn't broken before... just noting.

[aaronc]

Thanks for fixing this @jgimeno !

[jgimeno]

That's a good point @aaronc, do you think is worth it to create a PR to remove the line?

[aaronc]

That's a good point @aaronc, do you think is worth it to create a PR to remove the line?

Sure, why not. I also have the feeling it would be nice to cleanup that CHANGELOG or summarize it somehow before the release. It's massive.