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

) (cosmos#9606)

* 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

### Reviewers Checklist

*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*

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)

# Conflicts:
#	CHANGELOG.md

* fix conflicts

Co-authored-by: Zaki Manian <zaki@manian.org>
Co-authored-by: Amaury M <1293565+amaurym@users.noreply.github.com>

CHANGELOG.md

@@ -37,49 +37,11 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ## [Unreleased]
 
-## [v0.44.1](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.44.1) - 2021-09-29
-
-### Improvements
-
-* (store) [\#10040](https://github.com/cosmos/cosmos-sdk/pull/10040) Bump IAVL to v0.17.1 which includes performance improvements on a batch load.
-* (types) [\#10021](https://github.com/cosmos/cosmos-sdk/pull/10021) Speedup coins.AmountOf(), by removing many intermittent regex calls.
-* [\#10077](https://github.com/cosmos/cosmos-sdk/pull/10077) Remove telemetry on `GasKV` and `CacheKV` store Get/Set operations, significantly improving their performance.
-* (store) [\#10026](https://github.com/cosmos/cosmos-sdk/pull/10026) Improve CacheKVStore datastructures / algorithms, to no longer take O(N^2) time when interleaving iterators and insertions.
-
-### Bug Fixes
-
-* [\#9969](https://github.com/cosmos/cosmos-sdk/pull/9969) fix: use keyring in config for add-genesis-account cmd.
-* (x/genutil) [#10104](https://github.com/cosmos/cosmos-sdk/pull/10104) Ensure the `init` command reads the `--home` flag value correctly.
-* (x/feegrant) [\#10049](https://github.com/cosmos/cosmos-sdk/issues/10049) Fixed the error message when `period` or `period-limit` flag is not set on a feegrant grant transaction.
-
-### Client Breaking Changes
-
-* [\#9879](https://github.com/cosmos/cosmos-sdk/pull/9879) Modify ABCI Queries to use `abci.QueryRequest` Height field if it is non-zero, otherwise continue using context height.
-
-## [v0.44.0](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.44.0) - 2021-09-01
-
-### Features
-
-* [\#9860](https://github.com/cosmos/cosmos-sdk/pull/9860) Emit transaction fee in ante handler fee decorator. The event type is `tx` and the attribute is `fee`.
-
 ### Improvements
 
-* (deps) [\#9956](https://github.com/cosmos/cosmos-sdk/pull/9956) Bump Tendermint to [v0.34.12](https://github.com/tendermint/tendermint/releases/tag/v0.34.12).
-
-### Deprecated
-
-* (x/upgrade) [\#9906](https://github.com/cosmos/cosmos-sdk/pull/9906) Deprecate `UpgradeConsensusState` gRPC query since this functionality is only used for IBC, which now has its own [IBC replacement](https://github.com/cosmos/ibc-go/blob/2c880a22e9f9cc75f62b527ca94aa75ce1106001/proto/ibc/core/client/v1/query.proto#L54)
-
-### Bug Fixes
-
-* [\#9965](https://github.com/cosmos/cosmos-sdk/pull/9965) Fixed `simd version` command output to report the right release tag.
-* (x/upgrade) [\#10189](https://github.com/cosmos/cosmos-sdk/issues/10189) Removed potential sources of non-determinism in upgrades.
-
-### Client Breaking Changes
-
-* [\#10041](https://github.com/cosmos/cosmos-sdk/pull/10041) Remove broadcast & encode legacy REST endpoints. Please see the [REST Endpoints Migration guide](https://docs.cosmos.network/master/migrations/rest.html) to migrate to the new REST endpoints.
+* (cli) [\#9593](https://github.com/cosmos/cosmos-sdk/pull/9593) Check if chain-id is blank before verifying signatures in multisign and error.
 
-## [v0.43.0](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.43.0) - 2021-08-10
+## [v0.43.0-rc0](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.43.0-rc0) - 2021-06-25
 
 ### Features