## Summary of Bug <!-- Concisely describe the issue --> Ref: #1857 A message-based governance proposal with type `/ibc.core.client.v1.ClientUpdateProposal` produces the following error: ``` Error: no concrete type registered for type URL /ibc.core.client.v1.ClientUpdateProposal against interface *types.Msg ``` The same error occurs using simapp in `ibc-go v5.2.0`. ## Version <!-- git commit hash or release version --> - `v5.1.0` ## Steps to Reproduce <!-- What commands in order should someone run to reproduce your problem? --> - https://hackmd.io/Cg64sNNKR0mLHlCP_l1yzQ ____ ## For Admin Use - [ ] Not duplicate issue - [ ] Appropriate labels applied - [ ] Appropriate contributors tagged - [ ] Contributor assigned/self-assigned