After calling the dialog box "Input list" (click with the mouse) and using the "Edit" button, the window is closed without any reaction.
Insert any "Input list" field with several entries.
Click in the field area.
In the dialog that opens, select "Edit".
The window is closed without any reaction.
User Profile Reset: No
Fixed from future 6.0.7 for 6.0 branch or you can give a try to 6.1
*** This bug has been marked as a duplicate of bug 118965 ***