Post #1659274

@claudius and then there're those that go: "let's make it extra safe by picking 6.1" 😉 Priorities make a huge difference, since Python Markdown has a lot of internal state that gets shuffled around, so changing them can lead to incorrect results. Our upcoming component system will include a much, much simpler to understand Markdown AST visitor and transformer API. The cases where ordering is important will be reduced by 90%, and those will not be handled by magic numbers but explicit ordering.