Index: specials/SD_BrowseData.php
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- specials/SD_BrowseData.php	(revision 15a7b6823de5c6ec6f9d54244feb6cb024216dca)
+++ specials/SD_BrowseData.php	(revision )
@@ -831,6 +831,8 @@
 
 	function printComboBoxInput( $filter_name, $instance_num, $filter_values, $cur_value = null ) {
 		$filter_name = str_replace( ' ', '_', $filter_name );
+		$filter_url = $this->makeBrowseURL( $this->category, $this->applied_filters, $this->subcategory );
+
 		// URL-decode the filter name - necessary if it contains
 		// any non-Latin characters.
 		$filter_name = urldecode( $filter_name );
@@ -842,7 +844,7 @@
 		$inputName = "_search_$filter_name";
 
 		$text =<<< END
-<form method="get">
+<form method="get" action="$filter_url" >
 
 END;
 
@@ -878,7 +880,10 @@
 
 END;
 
-		$text .= Html::input( null, wfMessage( 'searchresultshead' )->text(), 'submit', array( 'style' => 'margin: 4px 0 8px 0;' ) ) . "\n";
+		$text .= Html::input(
+				null, wfMessage( 'searchresultshead' )->text(),
+				'submit', array( 'style' => 'margin: 4px 0 8px 0;' )
+		) . "\n";
 		$text .= "</form>\n";
 		return $text;
 	}