Fixes a bug when checking if a config key is a comment

src/main/java/net/knarcraft/knarlib/config/StargateYamlConfiguration.java

@@ -81,6 +81,16 @@ public class StargateYamlConfiguration extends YamlConfiguration {
         }
     }
 
+    /**
+     * Checks whether the given configuration key is a comment
+     *
+     * @param key <p>The configuration key to check</p>
+     * @return <p>True if the configuration key is a comment</p>
+     */
+    public static boolean isComment(@NotNull String key) {
+        return key.matches(".*" + START_OF_COMMENT + "[0-9]+");
+    }
+
     /**
      * Saves the given configuration
      *
@@ -107,7 +117,7 @@ public class StargateYamlConfiguration extends YamlConfiguration {
      */
     public static Set<String> getKeysWithoutComments(@NotNull ConfigurationSection configurationSection, boolean deep) {
         Set<String> keys = new HashSet<>(configurationSection.getKeys(deep));
-        keys.removeIf(key -> key.matches(START_OF_COMMENT + "[0-9]+"));
+        keys.removeIf(StargateYamlConfiguration::isComment);
         return keys;
     }