Fix dontbugme command

Fixes #2152

common/src/main/java/us/myles/ViaVersion/AbstractViaConfig.java

@@ -120,6 +120,12 @@ public abstract class AbstractViaConfig extends Config implements ViaVersionConf
         return checkForUpdates;
     }
 
+    @Override
+    public void setCheckForUpdates(boolean checkForUpdates) {
+        this.checkForUpdates = checkForUpdates;
+        set("checkforupdates", checkForUpdates);
+    }
+
     @Override
     public boolean isPreventCollision() {
         return preventCollision;

common/src/main/java/us/myles/ViaVersion/api/ViaVersionConfig.java

@@ -11,6 +11,14 @@ public interface ViaVersionConfig {
      */
     boolean isCheckForUpdates();
 
+    /**
+     * Sets whether to check for updates. This updates the internally cached value
+     * as well as the config, but does not save the config to disc.
+     *
+     * @param checkForUpdates true to check for updates on server start and joins
+     */
+    void setCheckForUpdates(boolean checkForUpdates);
+
     /**
      * Get if collision preventing for players is enabled
      *

common/src/main/java/us/myles/ViaVersion/commands/defaultsubs/DontBugMeSubCmd.java

@@ -6,6 +6,7 @@ import us.myles.ViaVersion.api.command.ViaSubCommand;
 import us.myles.ViaVersion.api.configuration.ConfigurationProvider;
 
 public class DontBugMeSubCmd extends ViaSubCommand {
+
     @Override
     public String name() {
         return "dontbugme";
@@ -21,7 +22,7 @@ public class DontBugMeSubCmd extends ViaSubCommand {
         ConfigurationProvider provider = Via.getPlatform().getConfigurationProvider();
         boolean newValue = !Via.getConfig().isCheckForUpdates();
 
-        provider.set("checkforupdates", newValue);
+        Via.getConfig().setCheckForUpdates(newValue);
         provider.saveConfig();
         sendMessage(sender, "&6We will %snotify you about updates.", (newValue ? "&a" : "&cnot "));