I see you marked it so it can't be seen in normal Profile View Gilbert, good.
To answer your question, this source from Ancestry means they used another Family Tree on Ancestry to populate their Mildred Breedlove on Ancestry. I use Ancestry all the time and add sources from there to WIkiTree...except this type of source for 2 reasons: 1) This source is a Family Tree created by someone on Ancestry who may or may not be that well versed in verifying the data they added to their tree. Sort of like using the Index of a book as your source and not the actual info in the book. It's 3rd hand information from an unknown party. And 2), since you can't see it, even if your are an Ancestry member, it's superfluous.
The data I add from Ancestry points to actual data, a US Census, Death Certificate, Draft Registration, etc. While the data may not be able to be clicked on to go to an exact url, it is from a separately verifiable source and I put as much info about the original source as possible. Many on WikiTree find that an abomination to sourcing, yet what about using a book in a library I will never be able to visit. Same difference, but since many have an aversion to anything Ancestry Com related, well, I'll just leave it at that.
I would remove that addition from one of my Profiles and inform the member who added it, that while I appreciate their good intentions, this is not a good source under WikiTree Rules and Policy on Sourcing. Have them see: https://www.wikitree.com/wiki/Help:Sources_Style_Guide
A gentle nudge in the right direction.
All the best, LJ