fix: Invoke UserUpdated from GuildMemberUpdated if needed (#1623)

src/Discord.Net.WebSocket/DiscordSocketClient.cs

@@ -903,6 +903,13 @@ namespace Discord.WebSocket
 
                                         if (user != null)
                                         {
+                                            var globalBefore = user.GlobalUser.Clone();
+                                            if (user.GlobalUser.Update(State, data.User))
+                                            {
+                                                //Global data was updated, trigger UserUpdated
+                                                await TimedInvokeAsync(_userUpdatedEvent, nameof(UserUpdated), globalBefore, user).ConfigureAwait(false);
+                                            }
+
                                             var before = user.Clone();
                                             user.Update(State, data);
                                             await TimedInvokeAsync(_guildMemberUpdatedEvent, nameof(GuildMemberUpdated), before, user).ConfigureAwait(false);