A 'unsaved changes' message is displayed after modifying Advisor's weekly report preferences despite the change being saved.

Steps to reproduce:

1) Navigate to User Preferences

2) Select RHEL > Advisor

3) Change the configuration for 'Weekly report' (either select or unselect)

4) Click 'Save'

Although the configuration is saved, navigating away triggers a warning 'unsaved changes' message that should not be displayed.