Clear BaumemberCache post checkpoint

SpigotCore_Main/src/de/steamwar/core/CheckpointUtils.java

@@ -22,6 +22,7 @@ package de.steamwar.core;
 import com.comphenix.tinyprotocol.Reflection;
 import com.comphenix.tinyprotocol.TinyProtocol;
 import com.viaversion.viaversion.api.Via;
+import de.steamwar.sql.BauweltMember;
 import de.steamwar.sql.internal.Statement;
 import io.netty.channel.ChannelFuture;
 import org.bukkit.Bukkit;
@@ -140,6 +141,7 @@ public class CheckpointUtils {
         }
         Via.getManager().getInjector().inject();
 
+        BauweltMember.clear();
         Core.getInstance().getLogger().log(Level.INFO, "Checkpoint restored");
     }
 }