Missing auto-complete in 'links' tab in news articles.

[luxumbra]

in the 'links' tab for news articles, when clicking on the 'add another Object link' link to add an extra link input, it's missing the auto-complete.

If the link type is selected but the input left blank and the user saves the article, it throws a 'required field' error and the auto-complete is present.

[evildmp]

This is an issue in django-widgetry. When new inlines are added, the autocomplete doesn't work on them.