It was already reported.

2010/12/21 Johannes Obermayr <johannesobermayr@gmx.de>:
> Am Dienstag, 21. Dezember 2010, 18:23:29 schrieb Dimitrios Glentadakis:
>> Στις Τρίτη 21 Δεκέμβριος 2010 14:13:43 Thanomsub Noppaburana γράψατε:
>> > I found it crashed via KDE 4.6 beta with Qt 4.7.1 too.
>> > It made me in trouble localization, T_T
>> >
>> > Thanks for the notice.
>> >
>> >
>> > 2010/12/21 Frederik Schwarzer <schwarzerf@gmail.com>
>> >
>> > > [Alexander Potashev - Tuesday 21 December 2010 13:55:08]
>> > > > 2010/12/21 Frederik Schwarzer <schwarzerf@gmail.com>:
>> > > > > Hi,
>> > > > >
>> > > > > in case you did not notice yet. It seems Lokalize (as some other
>> > > > > apps) is broken with Qt 4.7.
>> > > >
>> > > > But it works with Qt 4.7.0.
>> > >
>> > > Yes, I forgot to make that clear. It is only broken since 4.7.1.
>> > >
>> > > Regards
>> > >
>> >
>>
>> The solution is in the screenshot
>> with this i continue to use lokalize as by error i clicked always on backspace.
>> http://img146.imageshack.us/img146/6131/backspace.jpg
>>  :)
>>
>> * i hope that will be fixed soon
>>
>
> Was it reported upstream? If not it won't be fixed soon ...
> (It worked up to Qt 4.7.0 and not since Qt 4.7.1 [patched] - so it seems to be a Qt bug and not a KDE bug ...)
>
> If I had a patched Qt 4.7.1 I would report it ...
>



-- 
Vit Pelcak