Merge branch '6087-check-function-in-simpletabs-should-be-public' into '1.4-dev'

Resolve "check function in simpleTabs should be public"

See merge request fusiondirectory/fd!766

include/simpleplugin/class_simpleTabs.inc

@@ -342,7 +342,7 @@ class simpleTabs
   /*!
    * \brief Check
    */
-  protected function check ()
+  public function check ()
   {
     global $config;
     $messages = [];