The oxheart-shape one ripened. I took the seeds out to save (they're in a jar of water waiting to be zapped; I still need to add another pack of watermelon seeds to the jar first). I ate the remainder of the fruit with my dinner (some burritos; I ate watermelon previous to the burritos). The taste was good.
It shriveled some near the stem-end. I'm not sure what causes that, but it's not cracked at the stem-end as the vine-ripened ones were. The fruit was entirely good, though (no bad parts). The taste was good, too, but the vine-ripened ones tasted even better. The seeds were smaller than those of the average tomato.
If it produces offspring with consistent oxheart-shaped fruits, I may give it a name (perhaps Sheboygan Oxheart).
Here are the pictures of it:



Location: SW Idaho, USA
Climate:
BSk
USDA hardiness zone: 6
Elevation: 2,260 feet
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