Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: GeForce GTX 1060 6GB/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 388.76
Broken: version: 2.81 (sub 11), branch: master, commit date: 2019-09-17 19:54, hash: rB9609840b5ea1
Short description of error
If you make a copy of layer by "Copy Layer to Object", the copied layer is not actually a copy but it is like a shallow copy.
If you edit a copied layer, the change affects the original one.
Exact steps for others to reproduce the error
- Select a layer of GPencil
- Copy the layer to GPencil.001 by click Copy Layer to Object > GPencil.001
- Draw something on the copied layer of GPencil.001
- Select GPencil and then go to Edit Mode. The change in GPencil.001 suddenly appears in GPencil