Color palette displays content from previous window

[Rubin Starset]

Steps to reproduce:

1. Grab a Thinkpad X220
2. Install Debian Sid amd64 with KDE
3. Install Inkscape 0.48.4 r9939 from the Debian repos
4. Open a bunch of random widows with random content in them
5. Maximize these windows
6. Open Inkscape
7. Tab between Inkscape and the other windows.
8. Observe

Expected results:
Inkscape tabs into view and redraws correctly

Actual results:
When Inkscape tabs back in, the color palette at the bottom of the window is redrawn with residual content from the previous window being topped. Depending on the coloring of the window, the palette might be displayed lighter or just completely white. Please see screen shots.

http://0.starset.net/screenies/20131017165601-runner-trophies-inkscape.svg%20-%20Inkscape.png
http://0.starset.net/screenies/20131017171010--home-rubin110-projects-SF0-journeysf2013-runner-trophies-inkscape.svg%20-%20Inkscape.png

Notes:

$ lspci -vs 00:02.0
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) (prog-if 00 [VGA controller])
        Subsystem: Lenovo Device 21da
        Flags: bus master, fast devsel, latency 0, IRQ 50
        Memory at f0000000 (64-bit, non-prefetchable) [size=4M]
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at 4000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: <access denied>
        Kernel driver in use: i915

$ uname -a
Linux lines 3.10-3-amd64 #1 SMP Debian 3.10.11-1 (2013-09-10) x86_64 GNU/Linux

[jazzynico (jazzynico)]

Not reproduced on Windows XP, Inkscape 0.48.4 and trunk revision 12701.

[jazzynico (jazzynico)]

And not reproduced on Crunchbang Waldorf (a Debian stable based distro.), Inkscape 0.48.3.1 and trunk revision 12795.

[su_v (suv-lp)]

Not reproduced on OS X 10.7.5, Inkscape 0.48.4 and trunk revision 12795 (both available backends of GTK+ tested: X11, Quartz).