[QGIS-Developer] Copy layer vs Duplicate layer ???

[Andrea Giudiceandrea]

Hi Richard and list,
the QGIS Desktop User Guide / Manual explains such functionalities, 
clearly stating that "The copy uses the same data source as the 
original." / "As for Duplicate, the layers are still based on the same 
data source."

****
"Duplicate" a layer to generate a copy where you can modify the name, 
style (symbology, labels, …), joins, … The copy uses the same data 
source as the original.

"Copy" and "Paste" layers or groups from one project to another as a new 
instance whose properties can be modified independently. As for 
Duplicate, the layers are still based on the same data source.
****

See 
https://docs.qgis.org/3.40/en/docs/user_manual/introduction/qgis_gui.html#layer

Regards.

Andrea

Il 04/06/2025 17:00, Richard Duivenvoorde via QGIS-Developer ha scritto:
> Hi People,
> 
> A user had an issue in which she 'copied' a layer, edited it and then 
> found out she edited the original data...