The thing is that the format would be some sort of standard that git core and other tools would use more extensively in the future. So there would be little point if we were to reformat it.
It'd hardly be a problem to pad with an extra newline before it, though. But even so it's an eyesore imo.
The commits in question were made on a private branch. /.../
Those private branches were made to apply the same patch onto several mainline branches, right? In that case there should be corresponding cherry picks on multiple branches in the repository, and it'd then be those that should be linked together. That linking would be in essentially arbitrary directions, but it doesn't matter much, as the point here is to record that the "same" patch occurs on several branches.