Only notify the owner's dev server about Bauwelt member changes

Dev servers are registered per owner (lowercase username), so there is
no need to wake every dev server.

VelocityCore/src/de/steamwar/velocitycore/commands/BauCommand.java

@@ -46,7 +46,6 @@ import de.steamwar.velocitycore.network.NetworkSender;
 import de.steamwar.velocitycore.util.BauLock;
 
 import java.io.File;
-import java.util.ArrayList;
 import java.util.Collection;
 import java.util.UUID;
 import java.util.function.Consumer;
@@ -289,7 +288,7 @@ public class BauCommand extends SWCommand {
     }
 
     /**
-     * Tells the owner's Bauserver and every dev server to drop their cached {@link BauweltMember}s,
+     * Tells the owner's Bauserver and the owner's own dev server to drop their cached {@link BauweltMember}s,
      * since those run in separate processes and would otherwise keep serving stale permissions.
      * Plugin messages need a connected player, so servers without players are skipped.
      */
@@ -298,7 +297,10 @@ public class BauCommand extends SWCommand {
         if (bauserver != null) {
             sendBaumemberUpdate(bauserver.getRegisteredServer());
         }
-        new ArrayList<>(DevCommand.getDevServers().values()).forEach(BauCommand::sendBaumemberUpdate);
+        RegisteredServer devServer = DevCommand.getDevServers().get(SteamwarUser.get(owner).getUserName().toLowerCase());
+        if (devServer != null) {
+            sendBaumemberUpdate(devServer);
+        }
     }
 
     private static void sendBaumemberUpdate(RegisteredServer server) {