second rust-analyzer instance started when opening another file in the same project

[mrcjkb]

See also: simrat39/rust-tools.nvim#421

Personally, I can reproduce some of the behaviour with tuxedo-rs:

1. Open a file in tailor-gui
2. Open another file in tailord or tailor-cli (e.g. with telescope)
3. :lua =#vim.lsp.get_clients()

Expected: 1 (I think)
Actual: 2

Expected number of rust-analyzer processes: 1 (I think)
Actual: 2

I believe this has to do with the fact that the plugin searches upward and uses the first directory it finds containing a Cargo.toml as the workspace root.

I cannot reproduce this when jumping from tailor_cli to tailord, or to a dependency, as described in simrat39/rust-tools.nvim#421.

[mrcjkb]

This actually happens because tailor_gui actually has a different workspace root.

[mrcjkb]

rust-lang/rust-analyzer#14098