Marksman is not aware of newly created file before it is opened

[chedieck]

When I make a link to a new file, I can create the file with the LSP with lua vim.lsp.buf.code_action() and this works fine.
However, upon trying to access the file using lua vim.lsp.buf.definition(), it doesn't see it. I have to manually open the file in neovim, or restart the LSP, for it to be able to access it by definition.

Here is a video showcasing the problem:

mm.webm