Operating system: Linux-4.4.0-146-generic-x86_64-with-debian-stretch-sid 64 Bits
Graphics card: GeForce GTX 1080/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 418.56
Broken: version: 2.80 (sub 71), branch: master, commit date: 2019-05-23 04:27, hash: rBf417a717b1d9
Short description of error
To identify tracking problems or use tracking markers as pivot or reference in the 3d Viewport it is sometimes necessary to select tracking markers in the 3d viewport.
In 2.79 this worked as follows:
If the Camera object is not selected and you click on one of the tracking markers in the 3d viewport, the marker gets selected and the camera object with it. If the camera is already selected, you simple select the tracking markers by clicking on them. The selection is synced to the actual tracking markers in the MCE. Currently it only works the other way around.
Exact steps for others to reproduce the error
Open the attached blendfile and try to select any of the markers in the 3d viewport.
It doesnt work, no matter which keymap is active.