feat: Error on blank chain-id in multisign command (backport cosmos#9593

) (cosmos#9605)

* feat: Error on blank chain-id in multisign command (cosmos#9593)

Error on `tx multisign` command if chain-id is blank. This is a common cause of signature verification failures when combining signatures and the error message doesn't provide any clues to this common cause.

I have...

- [x] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [x] added `!` to the type prefix if API or client breaking change
- [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
- [] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

*All items are required. Please add a note if the item is not applicable and please add
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I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

(cherry picked from commit f65b6c9)

* fix conflicts

* less change diff

Co-authored-by: Zaki Manian <[email protected]>
Co-authored-by: Amaury M <[email protected]>

CHANGELOG.md

@@ -36,7 +36,10 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## Unreleased
 
-## [v0.42.9](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.42.9) - 2021-08-04
+### Improvements
+
+* (baseapp) [\#9578](https://github.com/cosmos/cosmos-sdk/pull/9578) Return `Baseapp`'s `trace` value for logging error stack traces.
+* (cli) [\#9593](https://github.com/cosmos/cosmos-sdk/pull/9593) Check if chain-id is blank before verifying signatures in multisign and error.
 
 ### Bug Fixes