fix(group): migrate group policy account to base accounts with creden…

…tials (backport #13742) (#13962)

* fix(group): migrate group policy account to base accounts with credentials (#13742)

(cherry picked from commit d6da703)

* update changelog

* updates

Co-authored-by: Julien Robert <julien@rbrt.fr>

CHANGELOG.md

@@ -35,6 +35,16 @@ Ref: https://keepachangelog.com/en/1.0.0/
 
 # Changelog
 
+## [Unreleased]
+
+### State Machine Breaking
+
+* (x/group) [#13742](https://github.com/cosmos/cosmos-sdk/pull/13742) Migrate group policy account from module accounts to base account.
+
+### Bug Fixes
+
+* (x/group) [#13742](https://github.com/cosmos/cosmos-sdk/pull/13742) Fix `validate-genesis` when group policy accounts exist.
+
 ## [v0.47.0-alpha1](https://github.com/cosmos/cosmos-sdk/releases/tag/v0.47.0-alpha1) - 2022-11-21
 
 ### Features