Fix global user not clearing (may cause other issues)

src/Discord.Net.WebSocket/DiscordSocketClient.cs

@@ -46,6 +46,12 @@ namespace Discord.WebSocket
         private bool _guildSubscriptions;
         private GatewayIntents? _gatewayIntents;
 
+        // temporary for debugging
+        public string GetDebugOutput()
+        {
+            return $"Guilds: {State.Guilds.Count}, Channels: {State.Channels.Count}, DM Channels: {State.DMChannels.Count}, Private Channels: {State.PrivateChannels.Count}, Group Channels: {State.GroupChannels.Count}, Global Users: {State.Users.Count}, Guild Users: {Guilds.Sum(x => x.Users.Count)}";
+        }
+
         /// <summary>
         ///     Provides access to a REST-only client with a shared state from this client.
         /// </summary>

src/Discord.Net.WebSocket/Entities/Guilds/SocketGuild.cs

@@ -914,17 +914,15 @@ namespace Discord.WebSocket
         internal void PurgeGuildUserCache() => PurgeGuildUserCache(x => true);
         internal void PurgeGuildUserCache(Func<SocketGuildUser, bool> predicate)
         {
-            var members = Users.Where(predicate);
-            var self = CurrentUser;
+            var membersToPurge = Users.Where(x => predicate.Invoke(x) && x?.Id != Discord.CurrentUser.Id);
+            var membersToKeep = Users.Where(x => !predicate.Invoke(x) || x?.Id == Discord.CurrentUser.Id);
 
-            foreach (var member in members)
-            {
-                if (member.Id != self?.Id)
-                {
-                    _members.TryRemove(member.Id, out _);
+            foreach (var member in membersToPurge)
+                if(_members.TryRemove(member.Id, out _))
                     member.GlobalUser.RemoveRef(Discord);
-                }
-            }
+
+            foreach (var member in membersToKeep)
+                _members.TryAdd(member.Id, member);
 
             DownloadedMemberCount = _members.Count;
         }

src/Discord.Net.WebSocket/Entities/Users/SocketGlobalUser.cs

@@ -44,7 +44,7 @@ namespace Discord.WebSocket
         {
             lock (_lockObj)
             {
-                if (--_references <= 0)
+                if (--_references <= 1)
                     discord.RemoveUser(Id);
             }
         }