@acsr Thanks, I've given up, there are other ways to achieve the desired result, it's just a few more steps. Select an item and long press [Ctrl] to show all the collections in which the item is located.
I had not tested Zotero7 at that time. The new right sidebar offers a "Libraries & Collection" section and does exactly this: Showing all occurences of entries in Collections based on this particular item, even when it is copied to a another Library or Group.
When I was working on my personal export eta-Template for BetterBibTeX to create nice Markdown in a special flavour for pasting in my outliner https://logseq.org, I figured out when listing relations, there was also an additional relation showing up pointing to the origin of an item in another Library or Group, when it was copied from another Zotero Library or Group.
This relation did not show up in the former Zotero 6 UI as far as I know.
Now with Zotero 7 the magic is unveilled. Clever move.
FYI: Ever guessed why moving a lot of items between Libraries, Groups is so fast? Even during taking a snapshot is in progress, you can redecide where the item goes.
My guess: In the storage it is enough to use the copy-on-write approach for items as long the origin or copy is not altered by editing. Just add a reference like a hardlink pointing to the existing snapshot and only modify a then created copy when one is altered.
I omit the internal details of such transactions in storage and database, but having those clever approaches in place is very relevant when you use very large databases like me collecting hundreds of gigagytes of snapshots and files over decades (I use Zotero since 2009.)
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Thanks, I've given up, there are other ways to achieve the desired result, it's just a few more steps.
Select an item and long press [Ctrl] to show all the collections in which the item is located.
I had not tested Zotero7 at that time. The new right sidebar offers a "Libraries & Collection" section and does exactly this: Showing all occurences of entries in Collections based on this particular item, even when it is copied to a another Library or Group.
When I was working on my personal export eta-Template for BetterBibTeX to create nice Markdown in a special flavour for pasting in my outliner https://logseq.org, I figured out when listing relations, there was also an additional relation showing up pointing to the origin of an item in another Library or Group, when it was copied from another Zotero Library or Group.
This relation did not show up in the former Zotero 6 UI as far as I know.
Now with Zotero 7 the magic is unveilled. Clever move.
FYI: Ever guessed why moving a lot of items between Libraries, Groups is so fast? Even during taking a snapshot is in progress, you can redecide where the item goes.
My guess:
In the storage it is enough to use the copy-on-write approach for items as long the origin or copy is not altered by editing. Just add a reference like a hardlink pointing to the existing snapshot and only modify a then created copy when one is altered.
I omit the internal details of such transactions in storage and database, but having those clever approaches in place is very relevant when you use very large databases like me collecting hundreds of gigagytes of snapshots and files over decades (I use Zotero since 2009.)