Crash when cancelling filter window

Steps taken:

1. Connect to database.
2. Click on a table to choose it.
3. Click on the appropriate icon to display the content of the table with a filter.
4. A dialog box for the filter open. Click on "Cancel".

-> Crash.

Version: 1.12.0
Operating System: MacOS X 10.6.4
Postgresql version: 8.4.4



FYI,
Herouth