When using an object within a grouped section, then folding the group and
unfolding it again, the object changes unexpectedly it's size, position and anchor. 

The attached document illustrates the problem. There you can see a chart object
with its anchor on cell E5, position 9,13/1,91 cm and size 8x7 cm. When folding
the group (row 4-22), the anchor is changed to position E3, what is the first
row above the now hidden rows. Besides the graph is shown some kind of
"flattened" in row 3.

When unfolding the group, the anchor leaves at E3 and the chart is extremely
stretched.

The same happens with the smiley shade on the next page, so it seems to effect
all kind of objects (charts, shapes, buttons, ...).

This issue concerns all platforms (tried it on debian linux) and all versions
before 3rc1. 

I guess, the problem was reported before in issue
http://qa.openoffice.org/issues/show_bug.cgi?id=54130 , but it couldn't be
reproduced there.