Clear entity trackers on server switch

Fixes #5930

api/src/main/java/com/viaversion/viaversion/api/connection/UserConnection.java

@@ -90,8 +90,8 @@ public interface UserConnection {
     void addEntityTracker(Class<? extends Protocol> protocolClass, EntityTracker tracker);
 
     /**
-     * Clear all the stored objects.
+     * Clear stored objects and entity trackers.
-     * Used for bungee when switching servers.
+     * Used for Bungee when switching servers.
      */
     void clearStoredObjects();
 

common/src/main/java/com/viaversion/viaversion/connection/UserConnectionImpl.java

@@ -114,6 +114,7 @@ public class UserConnectionImpl implements UserConnection {
     @Override
     public void clearStoredObjects() {
         storedObjects.clear();
+        entityTrackers.clear();
     }
 
     @Override