Merge commit from fork

Ensure we sanitize svgs on the `wp_handle_sideload_prefilter` filter

safe-svg.php

@@ -130,6 +130,7 @@ public function __construct() {
 
 			add_action( 'init', array( $this, 'setup_blocks' ) );
 			add_filter( 'upload_mimes', array( $this, 'allow_svg' ) );
+			add_filter( 'wp_handle_sideload_prefilter', array( $this, 'check_for_svg' ) );
 			add_filter( 'wp_handle_upload_prefilter', array( $this, 'check_for_svg' ) );
 			add_filter( 'wp_check_filetype_and_ext', array( $this, 'fix_mime_type_svg' ), 75, 4 );
 			add_filter( 'wp_prepare_attachment_for_js', array( $this, 'fix_admin_preview' ), 10, 3 );