#12453: Not sure when this last was what we wanted to happen, comment out to fix this bug

git-svn-id: file:///svn/Scribus/trunk/Scribus@19535 11d20701-8431-0410-a711-e3c959e3b870
#4648: improve reactivity when changing opacity in "Extended Image Effects"

git-svn-id: file:///svn/Scribus/trunk/Scribus@19537 11d20701-8431-0410-a711-e3c959e3b870