Index: category-template.php
===================================================================
--- category-template.php	(revision 10857)
+++ category-template.php	(working copy)
@@ -779,7 +779,7 @@
  * @return string
  */
 function get_the_tag_list( $before = '', $sep = '', $after = '' ) {
-	return apply_filters( 'the_tags', get_the_term_list( 0, 'post_tag', $before, $sep, $after ) );
+	return apply_filters( 'the_tags', get_the_term_list( 0, 'post_tag', $before, $sep, $after ), $before, $sep, $after);
 }
 
 /**
@@ -793,7 +793,7 @@
  * @return string
  */
 function the_tags( $before = 'Tags: ', $sep = ', ', $after = '' ) {
-	return the_terms( 0, 'post_tag', $before, $sep, $after );
+	echo get_the_tag_list($before, $sep, $after);
 }
 
 /**