kdesudo when run from plasma run window, crashes

Binary package hint: kdesudo

Version: kdesudo 3.1 (using KDE 4.2.2)

When run from kdesudo without any params, it shows a window with usage info; On
clicking OK it crashes with the below backtrace.

I'm running the latest RC from kubuntu 9.04

~$ kdesudo -v
Qt: 4.5.0
KDE: 4.2.2 (KDE 4.2.2)
KdeSudo: 3.1

---------------8<------------

Application: KdeSudo (kdesu), signal SIGSEGV
[Current thread is 0 (LWP 9084)]

Thread 2 (Thread 0xb4a61b90 (LWP 9086)):
#0 0xb80c1430 in __kernel_vsyscall ()
#1 0xb6c677b1 in select () from /lib/tls/i686/cmov/libc.so.6
#2 0xb7980380 in ?? () from /usr/lib/libQtCore.so.4
#3 0xb78ae96e in ?? () from /usr/lib/libQtCore.so.4
#4 0xb67b54ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#5 0xb6c6f49e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb65ba700 (LWP 9084)):
[KCrash Handler]
#6 0xb7e7e090 in KPasswordDialog::setPixmap () from /usr/lib/libkdeui.so.5
#7 0x0804faee in _start ()

Copying https://bugs.kde.org/show_bug.cgi?id=190233