gtkextra-2: Problem adding children to inserted rows in a GtkSheet

I am using gtkextra-2 built from CVS about a couple of months ago.  I'm
running on linux (Mandrake 9.1, recent 2.4.x kernel/libs).  The GTK is
gtk+-2.2.4.

I'm having a problem with adding children to inserted rows in a
GtkSheet.  If I add children to rows that existed when I *created* the
sheet, they work fine.  However, if I add children to rows I *inserted*
later, I can not get them to show:

This works:
- Create a GtkSheet with 3 rows and 6 columns, using gtk_sheet_new()
- Add a child widget to row 1, column 1 with gtk_sheet_attach()
- The widget appears correctly.

Now, keep going with these steps:
- Use gtk_sheet_insert_rows() to insert a new row 2 (moving the existing
row down to now be row 3): gtk_sheet_insert_rows(sheet, 2, 1);
- Add a child widget to row 2, column 1 with gtk_sheet_attach()
- Note: the widget does not appear

	I have tried freeze/thaw, hide/show, and have even messed around with
some lower-level gtk realize/map stuff.  I can not get the second child
widget to be displayed.  I suspect possibly a problem with the linked
lists of children being managed by GtkSheet getting corrupted when a row
is inserted, but I have not been able to verify this from going through
the GtkSheet code.

	Does anybody have this scenario working?  Has anybody else seen this
problem?

	Adrian, do you have a test case for adding child widgets to dynamically
inserted rows in a GtkSheet that works?  If so, I'd love to see the
code.  If not, would it be possible for you to build such a small test
case, and confirm that you either can or can't see this problem as
well?  I've run out of ideas...

	Thanks!

-Al




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