Warning on media library

Hello, we are getting warnings every time the media library is accessed on “Grid” mode.

Debugging further I’ve realized where the bug is introduced.

$args is lost after get_media_item_args is called, and the warning happens when next lines try to access $args[‘in_modal’]

/** This filter is documented in wp-admin/includes/media.php */
	$args = apply_filters( 'get_media_item_args', $args );

in init.php, line 582, you introduce a filter:

// Force 'Insert into Post' button from Media Library.
add_filter( 'get_media_item_args', 'bsf_force_send' );

function bsf_force_send( $args ) {

	if ( ! isset( $_GET['bsf_file_upload_nonce'] ) || ! wp_verify_nonce( $_GET['bsf_file_upload_nonce'], 'ajax_nonce' ) ) {
		return ; // <- Here is the bug, you should return $args
	}

The plugin is breaking the filter, returning nothing instead of returning the original $args.