abrt version: 1.1.18
architecture: x86_64
cmdline: python /usr/bin/meld
component: meld
executable: /usr/bin/meld
kernel: 2.6.35.13-92.fc14.x86_64
package: meld-1.5.1-1.fc14
reason: meldwindow.py:345:on_notebook_label_changed:AttributeError: 'NoneType' object has no attribute 'set_label_text'
release: Fedora release 14 (Laughlin)
How to reproduce: Comparing 2 folders with similar content
time: 1311769891
uid: 500

backtrace
-----
meldwindow.py:345:on_notebook_label_changed:AttributeError: 'NoneType' object has no attribute 'set_label_text'

Traceback (most recent call last):
  File "/usr/share/meld/meld/meldwindow.py", line 345, in on_notebook_label_changed
    nbl.set_label_text(text)
AttributeError: 'NoneType' object has no attribute 'set_label_text'

Local variables in innermost frame:
text: '[_FOLDERNAME_REMOVED_] a.php : [_FOLDERNAME_REMOVED_] a.php'
self: <meld.meldwindow.MeldWindow object at 0x7ff5f282a3d0>
component: <FileDiff object at 0x7ff5f104db40 (meld+filediff+FileDiff at 0x27e28c0)>
tooltip: '[_FOLDERNAME_REMOVED_] a.php : [_FOLDERNAME_REMOVED_] a.php'
nbl: None
page: <gtk.VBox object at 0x3177be0 (GtkVBox at 0x2980170)>