Custom role, capabilities, and post type: preview button wrecks things

It’s working now. I’m not sure why or how. I tried applying the workaround to bug 19378 that’s posted in comment 6 of this page ( http://core.trac.wordpress.org/ticket/19378 ) since it looked related. It didn’t seem to have an effect immediately, but I am guessing that’s what did it?

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