fix(x/group): proper address rendering in error (backport #22425) (#22432)

Co-authored-by: Julien Robert <[email protected]>

Author: mergify[bot]

CHANGELOG.md

@@ -48,7 +48,8 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 ### Bug Fixes
 
-* (sims) [21906](https://github.com/cosmos/cosmos-sdk/pull/21906) Skip sims test when running dry on validators
+* (x/group) [#22425](https://github.com/cosmos/cosmos-sdk/pull/22425) Proper address rendering in error
+* (sims) [#21906](https://github.com/cosmos/cosmos-sdk/pull/21906) Skip sims test when running dry on validators
 * (cli) [#21919](https://github.com/cosmos/cosmos-sdk/pull/21919) Query address-by-acc-num by account_id instead of id.
 * (x/group) [#22229](https://github.com/cosmos/cosmos-sdk/pull/22229) Accept `1` and `try` in CLI for group proposal exec.
 

x/group/keeper/proposal_executor.go

@@ -76,7 +76,7 @@ func ensureMsgAuthZ(msgs []sdk.Msg, groupPolicyAcc sdk.AccAddress, cdc codec.Cod
 
 		for _, acct := range signers {
 			if !bytes.Equal(groupPolicyAcc, acct) {
-				return errorsmod.Wrapf(sdkerrors.ErrUnauthorized, "msg does not have group policy authorization; expected %s, got %s", groupPolicyAcc.String(), acct)
+				return errorsmod.Wrapf(sdkerrors.ErrUnauthorized, "msg does not have group policy authorization; expected %s, got %s", groupPolicyAcc.String(), sdk.AccAddress(acct).String())
 			}
 		}
 	}