Fix map node recursive set

Author: Rubenicos

src/main/java/com/saicone/settings/node/MapNode.java

@@ -293,12 +293,12 @@ public void set(@NotNull SettingsNode node, @NotNull String... path) {
             final SettingsNode child = mapNode.getValue().get(key);
             if (child == null) {
                 mapNode = new MapNode(this, key);
-                put(key, mapNode);
+                mapNode.getValue().put(key, mapNode);
             } else if (child.isMap()) {
                 mapNode = child.asMapNode();
             } else {
                 mapNode = new MapNode(this, key);
-                put(key, mapNode.mergeComment(child));
+                mapNode.getValue().put(key, mapNode.mergeComment(child));
             }
         }
         final String key = path[path.length - 1];