Drag&drop in "Dictionary order" pane makes GD crash.

Version:
1.GD: the latest git code;
2.QT: 4.6.2;
3.OS: ubuntu 10.04.
Procedure to reproduce:
1. In main window, click menu "Edit" -> "Dictionaries...";
2. In "Dictionaries" window, Click the "Dictionaries" tab;
3. In "Dictionary Order:" pane, drag and drop any dictionary.
Then GD will crash with an error message "segment fault".
1.GD: the latest git code;
2.QT: 4.6.2;
3.OS: ubuntu 10.04.
Procedure to reproduce:
1. In main window, click menu "Edit" -> "Dictionaries...";
2. In "Dictionaries" window, Click the "Dictionaries" tab;
3. In "Dictionary Order:" pane, drag and drop any dictionary.
Then GD will crash with an error message "segment fault".