Last modified: 2013-11-20 10:47:24 UTC
Created attachment 12660 [details] Screenshot See the screenshot; before and after the backspace, respectively.
This is the same issue as Bug 51624 that was originally reported as happening with table cells and then extended to include image captions. I'm not sure which should me marked as duplicate of the other
This was fixed months ago; sorry for not spotting this bug report until now.