Do nothing if the clicked region is already selected

Supposed to fix bug
https://bugzilla.wikimedia.org/show_bug.cgi?id=39932

src/jquery.uls.regionfilter.js

@@ -125,12 +125,11 @@
 		},
 
 		click: function( e ) {
+			// Don't do anything if a region is selected already
 			if( this.$element.hasClass( 'active' ) ) {
-				this.$element.removeClass( 'active' );
-				if ( this.options.noresults ) {
-					this.options.noresults.call();
+				return;
 			}
-			} else {
+
 			// Re-populate the list of languages
 			this.options.$target.empty();
 			this.show();
@@ -141,7 +140,6 @@
 				this.$element.addClass( 'active' );
 			}
 		}
-		}
 	};
 
 	/* RegionSelector plugin definition */