Writing inline code which contains backticks in the old editor used to be really annoying, so I still instinctively default to writing HTML, like this:
<code>`</code>
When I write that into the Markdown mode of the new editor, then switch to Rich mode, it displays correctly:
but then when I switch back, it gets converted into completely broken markdown:
<code>` ` </code>`
This does not render correctly; it looks like:
` `
instead of
`