Beta3 schema priveliges problem

On the Schema properties popup, Priveliges tab, the only selection in the 'Group' combo box within the 'Priveliges' panel at the bottom seems to be the 'public' group.  Even though there are other groups in the list, choosing one other than 'public' seems to be ignored.
Is this user error, and I'm missing something, or is this a bug?
I'm running the windows version btw.
Congrats to all on an otherwise very nice looking app.

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