Description of your request or bug report:
The series collapses fine in “wish list”, but the books in “owned” are listed separately.
Trello link:
Another occurrence:
Seems like the problem is usually with volume 1 of the series, the other volumes behave as expected.
3 Likes
Another example in my Japanese library:
I’d guess it’s something to do with the first volume being added before the other volumes have populated. 
2 Likes
