Created attachment 6646 [details] bug2.pdf This is a split off from bug691527. From analysis of Ray Johnston it appears that a pattern that includes transparency and a mask is not getting written and read into the clist properly.
Comment on attachment 6646 [details] bug2.pdf from bug691527_simple_bug2.pdf of bug 691527
Patch for 691471 is relevant to this bug. It handles the non-clist case but clist case still has issues.
Created attachment 7204 [details] 6646: bug2.pdf
I can't make the clist or non-clist case give problems since the pattern trans clist work was merged to trunk. Closing.