Unfortunately I can't make this happen again because the post is gone from the review page since I've already reviewed it. And I didn't fetch a screen grab because I was trying to see if it would happen twice...
This question: What is this pink flower with dark green leaves? was on the review page.
I was looking at https://gardening.stackexchange.com/review/first-questions?s=1&pagesize=15&filter=week (review -> first questions -> week).
The question above was listed, I clicked review question, and instead of seeing the question expand, I saw the photo spill under the right-hand nav/stats column.