Have the occasional bout of it myself. Same symptoms of eating a really high carb meal (going hypo first then hyper later), but happening with a normal food intake. Seems to happen more frequently when my blood sugar is not as well controlled as normal, although there are exceptions of course. Not officially diagnosed yet, but for me the problem is minor and more about decent blood sugar management than affecting my lifestyle. I've had T1D for around 24 years so I suppose I'm susceptible to most complications at this point.
I guess it occurs once a month or so for me, I manage episodes by chewing some gum as soon as the problem occurs, which aids digestion, drinking Lucozade to correct the hypo (which seems to absorb much more easily than the food sitting in my stomach), then monitoring the blood sugar carefully as it comes back up. Will often do a correction dose to cover the Lucozade at the next opportunity to bring things back into line.
To prevent future recurrances, I simplify my diet for a day or two after, eating more easily-digestible foods and staying on top of the sugars, after a few days I can go back to eating big pasta meals and curries!
Hope that helps.
Ty