Fixed in r. 55649. Thanks.
I can't find a way to update OPM inside OPM. Isn't that a rather obvious feature?
You're patching trunk. That's fine, but 1.8 is what people will be using, not trunk, so they need to be able to see that an update for OPM is available.
In the Create repository package dialog, there's something wrong with the focus. If I click in the lower (blank) panel, then I can click the folder button only once to bring up the selection dialog. I use this all the time, so it works fine on Mac, just not in OPM.
Also, in the dialog, the Cancel button should not be at the far right. See Apple guidelines for the default button placement.