GS installer: counterintuitive behaviour of select dir button

[ak19]

GS installer comes with a browse button to help you choose a directory to install Greenstone into. This dialog behaves differently from expected: you need to select a folder icon, not double click on it (thereby going into the folder) in order for the selected folder to appear in the textfield wherein you would type the location to install GS into.

Is there a way to make this behave more intuitively? Any changes would likely need to be made to the underlying installer code which is not written by Greenstone.