Extremely niche thing here that hardly affects anyone at all, but seems worth reporting to someone.
I was reviewing a suggested edit (number 3 in the revision history) in side-by-side mode. One of the fixes had changed the source from something like
$x = 3$ and $y = 5$
$$x = 3$$ and $$y = 5$$
The side-by-side display seems to miss the second and third
$$ symbols, concatenating both equations and the
and into a single equation, which makes it somewhat difficult to see what the change is doing. At first glance it looks like the edit ruined everything.
A more dramatic effect can be seen in the second revision, where the side-by-side display thinks entire sentences are inside math mode and so makes everything look like line noise.
I understand that this display mode is trying to strike a tricky balance between displaying changes in source and showing things as formatted where possible, but in cases like this, it doesn't help at all in the review process. Is there any fix for the parsing so that the segregation between text and math is respected?