Glad that helps you manXcat and thanks for the kudos! There's tons of ways to voice any chord on guitar and most 'chord' books or sites with usually show only the most common, so stick the new 'A7' fingering in your 'lesser used' chord library. And it doesn't have a proper name or affectionate title. It's just another fingering. Keep working at it and gradually your hands should adapt to the new shape.
BTW, I give live online '1 on 1' lessons here on Guitar Tricks if you need additional help. Here's the link to my schedule of available days, times, rates, and to book a lesson:
https://guitartricks.acuityscheduling.com/schedule.php?calendarID=1274409
Best regards,
Dave Celentano