Follow-up of https://github.com/zed-industries/zed/pull/30707
The old code does something odd, re-accessing essentially the same
adapter-server pair for every language server initialized; but that was
done before for "incorrect", non-reused worktree_id hence never resulted
in external worktrees' files registration in this code path.
Release Notes:
- Fixed certain external worktrees' files sometimes not registered with
language servers
Kirill Bulatov
5e38915d45