I installed version 0.92.14 of software-properties to see if that had any affect and it did not. Additionally, I noticed the following:
I had a local server in my sources.list files '192.168.11.1' and replaced it with 'ubuntu.osuosl.org' using vim. I then launchpad software-properties-gtk and changed my mirror to 'mirrors.picoserver.com'. After authenticating and closing software-properties-gtk I discovered my sources.list file changed back to '192.168.11.1'.
I installed version 0.92.14 of software-properties to see if that had any affect and it did not. Additionally, I noticed the following:
I had a local server in my sources.list files '192.168.11.1' and replaced it with 'ubuntu.osuosl.org' using vim. I then launchpad software- properties- gtk and changed my mirror to 'mirrors. picoserver. com'. After authenticating and closing software- properties- gtk I discovered my sources.list file changed back to '192.168.11.1'.