We intend to provide a permanent fix but for the sake of expediency, we have updated the feed to include a parameter that sets full article: https://gizmodo.com/rss/p4rtn3rs/c/field-guide?excerpt=false
I have updated this in Google News Producer.
Thanks for looking into the matter and providing a fix for the incomplete articles issue. We are closing the case from our end.
Thanks for your continued interest in Google News.