Bug#366302: libgtk2.0-dev: description of gtk_list_store_insert_after suggests that slibing can be null. However it doesn't work that way

[Emil Nowak]

Package: libgtk2.0-dev
Version: 2.8.17-2
Severity: normal

Let's take the gtk_list_store_insert_after function. It is described in
documentation like this:

void gtk_list_store_insert_after(GtkListStore *list_store, GtkTreeIter *iter, GtkTreeIter *sibling);

Inserts a new row after sibling. If sibling is NULL, then the row will be prepended to the beginning of the list. iter will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call gtk_list_store_set() or gtk_list_store_set_value().

But when I pass null as a slibing I got this error:

Gtk-CRITICAL **: gtk_list_store_insert_after: assertion `VALID_ITER (sibling, list_store)' failed

-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.16-1-686
Locale: LANG=pl_PL, LC_CTYPE=pl_PL (charmap=ISO-8859-2)

Versions of packages libgtk2.0-dev depends on:
ii  libatk1.0-dev                1.11.4-1    Development files for the ATK acce
ii  libcairo2-dev                1.0.4-1+b1  Development files for the Cairo 2D
ii  libglib2.0-dev               2.10.2-1    Development files for the GLib lib
ii  libgtk2.0-0                  2.8.17-2    The GTK+ graphical user interface 
ii  libpango1.0-dev              1.12.1-2    Development files for the Pango
ii  libx11-dev                   2:1.0.0-3   X11 client-side library (developme
ii  libxcursor-dev               1.1.5.2-2   X cursor management library (devel
ii  libxext-dev                  1:1.0.0-3   X11 miscellaneous extensions libra
ii  libxfixes-dev                1:3.0.1.2-4 X11 miscellaneous 'fixes' extensio
ii  libxi-dev                    1:1.0.0-5   X11 Input extension library (devel
ii  libxinerama-dev              1:1.0.1-2   X11 Xinerama extension library (de
ii  libxrandr-dev                2:1.1.0.2-2 X11 RandR extension library (devel
ii  pkg-config                   0.20-1      manage compile and link flags for 

libgtk2.0-dev recommends no packages.

-- no debconf information