Arrow near items with children showed even if depth=1

[globdug]

Hello,
I tried to set depth=1 when I call wp_nav_menu.
The elements that have childrens, do not open the dropdown menu has expected, but the arrow near the item it is showed anyway.

I added this checks in function start_el .

Could this be a solution?

Here:

wp-bootstrap4-navwalker/wp-bootstrap-navwalker.php

Lines 130 to 136 in 355486a

	if ( $args->walker->has_children ) {
	$classes[] = 'dropdown';
	}
	if ( 0 < $depth ) {
	$classes[] = 'dropdown-menu';
	}

if( $args->depth !== 1 ):
  if ( $args->walker->has_children ) {
    $classes[] = 'dropdown';
  }
  if ( 0 < $depth ) {
    $classes[] = 'dropdown-menu';
  }
endif;

Here:

wp-bootstrap4-navwalker/wp-bootstrap-navwalker.php

Line 207 in 355486a

if ( $args->walker->has_children ) {

if ( $args->walker->has_children && $args->depth!==1 ) {

And here:

wp-bootstrap4-navwalker/wp-bootstrap-navwalker.php

Lines 238 to 245 in 355486a

	if ( $args->walker->has_children ) {
	$item_classes[] = 'dropdown-toggle';
	}
	if ( 0 < $depth ) {
	$item_classes = array_diff( $item_classes, [ 'nav-link' ] );
	$item_classes[] = 'dropdown-item';
	}

if( $args->depth !== 1 ):
  if ( $args->walker->has_children ) {
    $item_classes[] = 'dropdown-toggle';
  }
  if ( 0 < $depth ) {
    $item_classes = array_diff( $item_classes, [ 'nav-link' ] );
    $item_classes[] = 'dropdown-item';
  }
endif;