Regression fix: rule table with ext. member support doesn't offer any items
There is a JS error.
Rule tables with external member has more than one column and therefore exclude parameter for adder dialog is not array of strings but array of objects. normalize_values function can't work with it and causes JS error.
This patch creates proper exclude array before passing it to adder dialog.
https://fedorahosted.org/freeipa/ticket/3711