I don't think there's any real history of this happening - if it did happen I'd think it likely to be an oil leak in or around a turbine sump. Check the manufacturer's SOI.
I knew of a military engine that, if taxied in "Hot" and promptly shutdown, would experience a brief re-ignition. The hot oil in the oil cooler would boil off a small bit of fuel that could only escape via the fuel nozzles.
The service was disinclined to call it a "fire" because of its short duration and no harm done - so the terminology was deemed to be "post-shutdown Dieseling".
