Comment 2 for bug 907708

OK, the truth is explorer re-uses qgetnew dialog but hides working tree options and forces light-weight checkout. There is comment from Ian:

        # Hide the options group box - checkouts are always lightweight in
        # explorer. If users want a heavyweight checkout, they need to use
        # the Branch dialog and bind the branch instead.

qgetnew is a bit overloaded with options. We have to revert this decision, but hide non-checkout options.