Markdown preview switches to latest open markdown document

Steps to Reproduce: 1. Open a markdown preview 2. Close the associated markdown file 3. Scroll around 4. Open the same markdown file again 5. 🐛 Scroll position is reset. 6. Close the markdown file 7. Open a different markdown file 8. 🐛 Preview changes to the new markdown file. Maybe it's because I use the markdown previews as markdown readers but I don't expect their state to be tied to the currently open markdown file, especially because I can close the markdown file and keep viewing without issue