I installed today software-properties 0.92.28 and I can confirm that after changing any of the sources (disabling multiverse, changing mirror or adding PPA) I get a dialog stating that software sources need to be refreshed.
I installed today software-properties 0.92.28 and I can confirm that after changing any of the sources (disabling multiverse, changing mirror or adding PPA) I get a dialog stating that software sources need to be refreshed.