This code fetches a message that is reacted to in order to check its author, but it's currently set up to only check Redux.
Instead, we should query SQLite in case the message is not currently in Redux. getLatestMessageEdit also contains a fallback to check Redux if the data is not in SQLite yet.
Technically getLatestMessageEdit doesn't return just the RawMessageInfo that was queried for; rather, it returns the latest edit (only applies to messageTypes.TEXT). I think this is fine in this case, since we only need to use the creatorID. It might be preferable in a future use case, but hard to know for sure.
Depends on D14337