Operating system: Windows-10-10.0.17763 64 Bits
Graphics card: Radeon RX Vega ATI Technologies Inc. 4.5.13547 Core Profile Context 25.20.15025.1002
Broken: version: 2.80 (sub 59), branch: blender2.7, commit date: 2019-04-24 22:25, hash: rBd966c2f0c2ad
Short description of error
In move clip editor mask mode, selection of handles is reversed. If left is set for selection right mouse button is used, If the right mouse button is set for selection, left mouse button is used.
Exact steps for others to reproduce the error
Open blender, open a movie clip editor, go to mask mode, import footage
ctrl+right mouse button drag to create curve nodes. Select the nodes with the mouse.
This bug is not present in the image editors mask mode.