Comments, fix testcase problems found in 'toolkit check pr'

crates/nu-cli/src/repl.rs

@@ -858,6 +858,7 @@ fn do_auto_cd(
         report_shell_error(engine_state, &err);
         return;
     };
+    // Let PWD-per-drive sync with auto_cd target
     let _ = nu_path::set_pwd_per_drive(PathBuf::from(path.clone()).as_path());
     let cwd = Value::string(cwd, span);