Discover 5.8.0 lists all repositories listed in the sources.list as enabled (not to mention that I couldn't even disable any of them). I will attach a screenshot of the issue, my sources.list for your reference. Reproducible: Always Steps to Reproduce: 1. Open up Discover 2. Go to the Settings tab Actual Results: All repositories are listed, regardless of if they were enabled or not (seems like Discover would just list all lines in that file with a keyword "deb"). ... And I wasn't able to disable any of them. Expected Results: Discover should show only those uncommented in the sources.list. ... And I should be able to enable or disable them (even a PolicyKit prompt will do).
Created attachment 101471 [details] Discover showing all repositories
Created attachment 101472 [details] sources.list
It's fixed in the next stable release, excuse the inconvenience.