fix: follow a link anywhere under the store base

src/commands/link/check.rs

@@ -5,7 +5,7 @@ use std::path::{Path, PathBuf};
 
 use anyhow::{Result, anyhow};
 
-use super::store::{Leads, Repo, leads, resolve, symlink_metadata_opt};
+use super::store::{Leads, Repo, held, leads, resolve, symlink_metadata_opt};
 use crate::cli::link as cli;
 use crate::cmd::{Cmd, LsFiles};
 use crate::ctx::Ctx;
@@ -179,10 +179,10 @@ fn classify(repo: &Repo, rel: &Path, mark: char) -> Result<Option<Exposed>> {
     }
 
     let dest = read_link(&src)?;
-    if dest == repo.store.join(rel) {
+    if held(repo, &src, &dest).is_some() {
         // it names the store, but what the store holds there can be a symlink of
         // its own leading straight back out, which is not being held at all
-        return Ok(match leads(&src, &repo.store) {
+        return Ok(match leads(&src, &repo.base) {
             Leads::Inside | Leads::Dangling => None,
             Leads::Outside(end) => Some(Exposed {
                 mark,