Steps to reproduce:
- Start Alfred by double-clicking the application in `/Applications`
- Check the "Launch Alfred at login" box
- Quit the application using the "Quit Alfred" button next to the checkbox
- Launch the application again by double clicking the application in `/Applications`
- See that the checkbox is no longer checked
Presumably a reinstallation of the application could fix this, but I thought I would report the bug here anyway in case someone wants me to collect logs or something.