While trying to test T183548 and import https://meta.wikimedia.beta.wmflabs.org/wiki/User_talk:Johnduhart into https://deployment.wikimedia.beta.wmflabs.org I get.
Import failed: Could not determine title for page ID 2616 and revision ID 8060
Again this seems related or similar to T183548 and T183505.
The same thing happens when trying to import the page over the web or by uploading a file.