The source project of this merge request has been removed.
Remove mate-tweak helper, old patch now in upstream src
The flidas make-mate-tweak helper was adding a single line...
--unredir-if-possible-exclude "class_g = 'Mate-screensaver'" \.. to the marco-compton and metacity-compton scripts. The marco-compton line is now included in the upstream code for mate-tweak in bionic, and the metacity-compton script no longer exists.
I have installed upstream mate-tweak_18.04.16-1_all.deb and it seems to be working.