Using GarageSale Version 7.0.15 (837), macOS Version 10.12.6 (16G1408)
If I manually Start or Relist and the Launch Control window is open, then I <option>-click another app (or <command>-H or select menu item Hide GarageSale) to switch apps and Hide the GarageSale app, when the Launch Control window closes (while app is hidden in background) the app will try to Quit, and the “Quit Now or Cancel” sheet will open. The GS app should NOT be trying to Quit in this case when the Launch Control window closes…