Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 650/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 419.67
Broken: version: 2.80 (sub 60), branch: blender2.7, commit date: 2019-04-30 22:49, hash: rB480a09a92f7f
Short description of error
Not sure if this is bug or intentional behavior.
On a scene with markers bound to cameras, the marker cameras are still bound to cameras in original scene. Can lead to user confusion (it did for me) where the other scene camera is still usable for viewing, but obviously the camera animation changes made in the copied scene do not have any visible effect.
I note that this behavior is unlike full copy without camera bound to marker. In that case the newly created (copied) camera is selected as active in Scene tab.
Exact steps for others to reproduce the error
Default startup scene
Add extra camera
animate camera change (bind camera to marker at frame 1 and camera.001 at frame X)
New scene / Full Copy
Note 2 new cameras created in copy but markers are still bound to original scene cameras.