#56 Directory behavior selects wrong directory when create=true

[Olu. Obembe]

if you have a directory tag similar to:

<directory
...
create="true"
checkExists="true"/>

When you select a directory by double clicking into it, and choosing "select folder", the main installer page will replace that value with the defaultValue.

If you remove the create attribute, when you select the directory as described above, it keeps your selection in the main page.

The create attribute should not cause this behavior.