Formatting: Don't convert smilies in ignored tags that have attributes.

Smilies in ignored tags are not supposed to be converted to emoji, but this can malfunction if the tag has attributes. For example, the Preformatted block with add a `class` to the `<pre>` tag.

Props pento, jikamens.
Merges [45569] to the 5.2 branch.
Fixes #47489.
Built from https://develop.svn.wordpress.org/branches/5.2@45837


git-svn-id: http://core.svn.wordpress.org/branches/5.2@45648 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/formatting.php

@@ -3228,7 +3228,7 @@ function convert_smilies( $text ) {
 			$content = $textarr[ $i ];
 
 			// If we're in an ignore block, wait until we find its closing tag
-			if ( '' == $ignore_block_element && preg_match( '/^<(' . $tags_to_ignore . ')>/', $content, $matches ) ) {
+			if ( '' == $ignore_block_element && preg_match( '/^<(' . $tags_to_ignore . ')[^>]*>/', $content, $matches ) ) {
 				$ignore_block_element = $matches[1];
 			}
 

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.2.3-alpha-45836';
+$wp_version = '5.2.3-alpha-45837';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.