Trouble with GtkTreeView background color in arabic version

[Eric Cazeaux <cazeaux enib fr>]

Hi,

I've developped a gtk application in French with GtkTreeViews. I set
"cell-background-gdk" attribute to change background color of cells and
it works well.

When i tried to launch the same application in arabic LANG=ar_AE.UTF-8,
columns are well inverteds, but background color of cells seems to be
filled with a bad offset and so, it overlap text near to the filled
cell.

It is a known bug or there are some explication?

Thanks for any help.

Eric