Last modified: 2011-03-13 18:05:47 UTC
Behind the cheery "Import succeeded!" emitted by Special:Import are the realities: any imported page with a timestamp equal or earlier to the current one in the database will not do what you want. It perhaps is technically, yes, imported, but at least you could emit "Warning: current version remains newest" or something in the HTML results message. Unrelated: my notes say "also importTextFile.php doesn't return an error to the shell upon failure." Not sure if I reported/you fixed yet.
Isn't it obvious?