In LR 9.2 when Lights Out is active, using Copy Settings changes the state of Lights Out to be Lights On.
repro:
1. enable lights out in either Library or Develop (any dim mode)
2. Select an image
3. Use either the kbsc (ctrl-sh-c) or the Copy button to copy settings
result: Lights Out state changes
expected: Lights Out should not change
workaround: push L again