Linux: Cannot select a data type in the Data Type drop-down in Create/Alter Table Print

The Data Type column in the Create/Alter Table window doesn't respond when selecting a type with mouse. It also not possible to scroll the list of types as the popup is immediately closed.

This problem has been identified only on Ubuntu using the Unity window manager. The solution is to use the keyboard to move (up/down key) in the list and select a type using the enter key.