includes/managers/class-fs-admin-menu-manager.php
function get_original_menu_slug() {
			if ( 'cpt' === $this->_type ) {
				return add_query_arg( array(
					'post_type' => $this->_menu_slug
				), 'edit.php' );
			}

			if ( false === strpos( $this->_menu_slug, '.php?' ) ) {
				return $this->_menu_slug;
			} else {
				return $this->_module_unique_affix;
			}
		}
function get_original_menu_slug() {
			if ( 'cpt' === $this->_type ) {
				return add_query_arg( array(
					'post_type' => $this->_menu_slug
				), 'edit.php' );
			}

			if ( false === strpos( $this->_menu_slug, '.php?' ) ) {
				return $this->_menu_slug;
			} else {
				return $this->_module_unique_affix;
			}
		}
function get_original_menu_slug ( ) { if ( 'cpt' === $ this -> _type ) { return add_query_arg ( array ( 'post_type' => $ this -> _menu_slug ) , 'edit.php' ) ; } if ( false === strpos ( $ this -> _menu_slug , '.php?' ) ) { return $ this -> _menu_slug ; } else { return $ this -> _module_unique_affix ; } }
Get plugin's original menu slug.

@author Vova Feldman (@svovaf)
@since  1.1.3

@return string
Get plugin s original menu slug .