Comment 16 for bug 1241902

File from comment 14 seems to render well (wista 64 bit) with patch from comment 15.
However,
1 when entering the group at the bottom right (double click),
2 clicking on the red "squares" so that group #g4100 is selected
3 and releasing the clip (right click and hitting the option from the drop down menu)

No entry appears in the history. Hitting CTRL-Z does something weird to the rendering ... (possibly a regression or this already described?)