qt4-designer freeze and crash with long line

[mlgpzhelajppukz]

$ lsb_release -rd
Description: Linux Mint 8 Helena - Main Edition
Release: 8

# apt-cache policy qtcreator
qtcreator:
  Installé : 1.2.1-3ubuntu1
  Candidat : 1.2.1-3ubuntu1
 Table de version :
 *** 1.2.1-3ubuntu1 0
        500 http://archive.ubuntu.com karmic/universe Packages
        100 /var/lib/dpkg/status

I had to manipulate a long line of just less than 1k chars.

When I made cut+paste of this long line, Qt Creator freezed, then crash.
I was forced to "Force quit" the app.
Actually, I *think* the "paste" action made it crash.

From the command-line I get: "qtcreator.bin: ../../src/xcb_io.c :378 : _XAllocID: assertion « ret != inval_id » failed."
I don't known if this error is related to this bug or if it prints when "Force quit" is done.

I tried unsuccessfully many times to edit this long line and it always freezed, then crashed.
I had to open my file (.cpp) with another editor to cut the line and continue my work with Qt Creator.

[Pedro Villavicencio (pedro)]

Thanks for the bug report. This particular bug has already been reported into our bug tracking system, but please feel free to report any further bugs you find.