Comment 45 for bug 120445

I had a look at the patch provided above (thanks mlind). It largely worked for me, but I slightly changed to make simpler and to fix another problem in preferences.c.

Testing with G_SLICE=debug-blocks. It seems that mem allocated with g_new needs to be freed with g_free, and gtk_tree_iter_copy needs a corresponding gtk_tree_iter_free. They don't like being mixed.

It doesn't look like there is much activity upstream.