Render view selection modes not working properly
The "Add Selection (Ctrl)" and "Subtract Selection (Shift)" buttons at the top of the render view are not working properly: Even if they are "on" (or the Ctrl or Shift button is pressed) the selection operation is always "Toggle Selection".
I am observing this in version 5.6.0 RC2. I can confirm that it was working properly in version 5.5.0.