Index: src/wp-includes/default-filters.php
===================================================================
--- src/wp-includes/default-filters.php	(revision 37319)
+++ src/wp-includes/default-filters.php	(working copy)
@@ -161,7 +161,6 @@
 add_filter( 'date_i18n', 'wp_maybe_decline_date' );
 
 // RSS filters
-add_filter( 'the_title_rss',      'strip_tags'                    );
 add_filter( 'the_title_rss',      'ent2ncr',                    8 );
 add_filter( 'the_title_rss',      'esc_html'                      );
 add_filter( 'the_content_rss',    'ent2ncr',                    8 );