fix bug in removeFromSelection, used by filter badge remove icon

Former-commit-id: fc18b928a6024bf79ba3cdbb7131392c925ab96a

ippisite/ippidb/templates/base.html

@@ -45,7 +45,7 @@
             var removeFromSelection = function(paramName, value){ 
                 var url = new URL(location.href);
                 var selectedValues = url.searchParams.getAll(paramName);
-                selectedValues.splice(selectedValues.indexOf(value));
+                selectedValues.splice(selectedValues.indexOf(value), 1);
                 modifyUrl(paramName, selectedValues); 
             }
             var multiselectTypeAhead = function(idSearch, selection, onSelect){