Wikimedia Bugzilla is closed!

In the MwEmbedSupport extension, MwEmbedModules/MwEmbedSupport/jquery/jquery.mwEmbedUtil.js contains the following buggy code:

        /**
         * Extend Unique to work with strings and number values
         * http://paulirish.com/2010/duck-punching-with-jquery/
         */
        var _oldUnique = $.unique;
    $.unique = function(arr){
        // Do the default behavior only if we got an array of elements
        if (!!arr[0].nodeType){
            return _oldUnique.apply(this,arguments);
        } else {
            // reduce the array to contain no dupes via grep/inArray
            return $.grep(arr,function(v,k){
                return $.inArray(v,arr) === k;
            });
        }
    };

!!arr[0].nodeType causes an exception for empty arrays. This broke one of the Wikipedia user scripts I developed, which uses jquery.ui.tabs.

The proper fix is to put the array-specific code in a separate function rather than trying to monkey patch a function "chiefly used internally by jQuery".

I'm just hesitant to do that myself because of how the TimedMediaHandler code is spread across two Git repositories.