[Plugin: Simple Facebook Connect] sfc_base_make_excerpt assumes wptexturize is always on

The function sfc_base_make_excerpt erroneously assumes that the filter wptexturize is always enabled for the_excerpt and the_content. I’ve attached a patch to make it respect the chosen filter settings.

--- sfc-base.php.old	2012-06-09 15:31:53.000000000 +0200
+++ sfc-base.php	2012-07-03 21:34:46.000000000 +0200
@@ -444,14 +444,20 @@

 	$text = strip_shortcodes( $text );

+	$has_filter = true;
+
 	// filter the excerpt or content, but without texturizing
 	if ( empty($post->post_excerpt) ) {
+		if ($has_filter = has_filter('the_content', 'wptexturize'))
 		remove_filter( 'the_content', 'wptexturize' );
 		$text = apply_filters('the_content', $text);
+		if ($has_filter)
 		add_filter( 'the_content', 'wptexturize' );
 	} else {
+		if ($has_filter = has_filter('the_excerpt', 'wptexturize'))
 		remove_filter( 'the_excerpt', 'wptexturize' );
 		$text = apply_filters('the_excerpt', $text);
+		if ($has_filter)
 		add_filter( 'the_excerpt', 'wptexturize' );
 	}

http://wordpress.org/extend/plugins/simple-facebook-connect/