importing non-existing subcommand from module is possible

Describe the bug

as title

How to reproduce

with std

1. run nu -n to not load std clip by default
2. run use std clip foo
3. clip can be run

with a module

1. define the foo module

module foo { export def bar [] {} }

2. import foo bar with a trailing garbage

use foo bar brr

3. bar can be run

Expected behavior

with std

i expected something like

Error: nu::parser::export_not_found

  × Export not found.
   ╭─[entry #17:1:1]
 1 │ use std "clip foo"
   ·         ─────┬────
   ·              ╰── could not find imports
   ╰────

or

Error: nu::parser::export_not_found

  × Export not found.
   ╭─[entry #18:1:1]
 1 │ use std foo
   ·         ─┬─
   ·          ╰── could not find imports
   ╰────

with a module

same expectations

Screenshots

No response

Configuration

Additional context

No response

Start by reproducing the issue with nu -n, use std clip foo, and the foo module example using use foo bar brr. Trace the parser entry point for use imports and verify that trailing or nonexistent exports produce an export_not_found error rather than making the valid command available.