Group library - Massive amounts of duplicated items

bwiernik

In one of my group libraries, I am seeing many items with 7 or 8 duplicates, all created at 2:12 PM on 4/27/2018. Did something happen at that time to create all of these duplicates?

Group:
https://www.zotero.org/groups/250396

dstillman

Created or modified? It looks like you had a large sync around that time that modified many old items. There are no items created then in the online library.

bwiernik

Hmm, the number of items increased from around 3,000 to over 7,000. I didn’t think these were present before that. Thanks.

dstillman

Only two items have been created in the group this year.

It's possible your local copy was somehow out of sync and pulled down a lot of old items.

bwiernik

Thanks for checking.

bwiernik

Okay, what it seems like has happened is that many items that were previously merged have become unmerged. Is there any way that that could have happened?