allowed null parent

modules/agency/back/methods/zone-geo/getLeaves.js

@@ -31,7 +31,7 @@ module.exports = Self => {
         }
     });
 
-    Self.getLeaves = async(zoneFk, parentFk = 1, filter) => {
+    Self.getLeaves = async(zoneFk, parentFk, filter) => {
         let conn = Self.dataSource.connector;
         let stmts = [];
 
@@ -47,7 +47,7 @@ module.exports = Self => {
                 isIncluded TINYINT
             ) ENGINE = MEMORY`));
 
-        if (parentFk === 1) {
+        if (!parentFk) {
             stmts.push(new ParameterizedSQL(
                 `INSERT INTO tmp.checkedChilds
                         SELECT