x/group does not propagate events correctly

[damiannolan]

Summary of Bug

The x/group module does not propagate events correctly to the current context.
This affects many ibc associated messages as relayers depend on certain events, for example hermes channel workers detect channel_open_init events and use this to complete the handshake flow.
In particular when testing an interchain-accounts account registration via x/group proposal events are not propagated to the current context in x/group msg_server.go Exec.

Version

v0.46.0

Steps to Reproduce

Some rough notes for reproducing below using this branch

icad tx group create-group $WALLET_1 test-metadata members.json --home ./data/test-1 --from $WALLET_1

icad q group group-info 1 --home ./data/test-1

icad tx group create-group-policy $WALLET_1 1 policy-meta policy.json --home ./data/test-1

icad q group group-policies-by-group 1 --home ./data/test-1
cosmos1afk9zr2hn2jsac63h4hm60vl9z3e5u69gndzf7c99cqge3vzwjzsfwkgpd

icad tx group submit-proposal proposal.json --home ./data/test-1 --from $WALLET_1

icad q group proposal 1 --home ./data/test-1

icad tx group vote 1 $WALLET_1 --home ./data/test-1 VOTE_OPTION_YES meta --from $WALLET_1
icad tx group vote 1 $WALLET_2 --home ./data/test-1 VOTE_OPTION_YES meta --from $WALLET_2

# fund the group policy address
icad tx bank send $WALLET_1 cosmos1afk9zr2hn2jsac63h4hm60vl9z3e5u69gndzf7c99cqge3vzwjzsfwkgpd 10000000stake --home ./data/test-1

icad tx group exec 1 --from $WALLET_1 --home ./data/test-1 --gas 500000 -b block