Fix late registration of join listener (#3360)

bukkit/src/main/java/com/viaversion/viaversion/ViaVersionPlugin.java

@@ -103,6 +103,12 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaPlatform<Player>
             manager.init();
         }
 
+        if (Via.getConfig().shouldRegisterUserConnectionOnJoin()) {
+            // When event priority ties, registration order is used.
+            // Must register without delay to ensure other plugins on lowest get the fix applied.
+            getServer().getPluginManager().registerEvents(new JoinListener(), this);
+        }
+
         if (FOLIA) {
             // Use Folia's RegionizedServerInitEvent to run code after the server has loaded
             final Class<? extends Event> serverInitEventClass;

bukkit/src/main/java/com/viaversion/viaversion/bukkit/platform/BukkitViaLoader.java

@@ -79,10 +79,6 @@ public class BukkitViaLoader implements ViaPlatformLoader {
     public void load() {
         registerListener(new UpdateListener());
 
-        if (Via.getConfig().shouldRegisterUserConnectionOnJoin()) {
-            registerListener(new JoinListener());
-        }
-
         /* Base Protocol */
         final ViaVersionPlugin plugin = (ViaVersionPlugin) Bukkit.getPluginManager().getPlugin("ViaVersion");