Comment 14 for bug 1631715

I'm seeing this issue for the first time in Ubuntu 19.10 (eoan).

Both the screensaver and the power manager have preferences for locking. I see this issue when both are enabled.

Under: Screensaver Preferences -> Lock Screen, I see:
Enable Lock Screen: Y/N
Lock Screen with Screensaver: Y/N
  Lock the screen after the screensaver is active for ___ minutes
Lock Screen with System Sleep: Y/N

Under: Xfce Power Manager -> Security, I see:
Light Locker:
  Automatically lock the session: Never/When screensaver is activated/When screensaver is deactivated
  Delay locking after screensaver for [1 to 61] minutes
  [Check] Lock screen when system is going to sleep

If I disable everything in one of those two places, I don't get the double locking.