inkscape crash via gradient-edit-tool with gtk theme oxygen-gtk

oxygen-gtk upstream said i should report it here too so i will do it ^^
https://bugs.kde.org/show_bug.cgi?id=295803

1. switch gtk theme to oxygen-gtk and open inkscape
2. draw a box
3. set background type gradient
4. click edit gradient
5. switch to the secound color -> crash

Report as Video
http://www.youtube.com/watch?v=LXbEOu6wn1E

Happens every time

Oxygen gtk Version: 1.2.1
Inkscape Version
Inkscape 0.48.3.1 r9886 (Mar 6 2012)
Inkscape 0.48.2 r9819 (Jul 11 2011)
Both tested in Ubuntu developers 12.04

gdb /usr/bin/inkscape
GNU gdb (Ubuntu/Linaro 7.4-0ubuntu1) 7.4
Copyright (C) 2012 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/inkscape...(no debugging symbols found)...done.
(gdb) run
Starting program: /usr/bin/inkscape
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[New Thread 0xb53d7b40 (LWP 16268)]
[New Thread 0xb49ffb40 (LWP 16269)]
[Thread 0xb53d7b40 (LWP 16268) exited]

Gtk-CRITICAL **: IA__gtk_paint_layout: assertion `style->depth == gdk_drawable_get_depth (window)' failed
The program 'inkscape' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadMatch (invalid parameter attributes)'.
  (Details: serial 48232 error_code 8 request_code 140 minor_code 3)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
[Thread 0xb49ffb40 (LWP 16269) exited]
[Inferior 1 (process 16263) exited with code 01]
(gdb) quit