Can't say as I ever have either, but I went looking. This is the closest possibility I found, but it is a guess:
alfalfa mosaic virus (aka potato calico virus)
https://vignette3.wikia.nocookie.net/gar ... 0511210519
https://upload.wikimedia.org/wikipedia/c ... _virus.jpg
Typical leaf symptoms on plants with alfalfa mosaic include bright yellow blotches with some mottle. Leaves can become distorted. Leaves eventually develop a bronze discoloration. Internally, phloem tissue becomes necrotic, including the phloem in the roots. The disease usually causes plant death. One of the most striking symptoms is the necrotic rings and spots on the fruit. Some fruit may develop a solid brown necrosis over the surface.
Alfalfa mosaic virus infections of tomatoes generally occur when tomatoes are grown near alfalfa. Alfalfa mosaic virus is seedborne in alfalfa and most alfalfa fields are infected and provide a good inoculum source. The virus is transmitted by several species of aphids; spread from alfalfa to surrounding crops is common
any alfalfa near you?