fix(rank): keep every --exclude key out of the sweep when the list has spaces (#641)

* fix(rank): keep every --exclude key out of the sweep when the list has spaces

`sweep --exclude "a_b, c_d"` split on bare commas, so " c_d" matched no
entry and every key after the first was swept. On an --all run that
expired a re-scored entry whose fresh deadline apply then re-ranked, so
the report listed it as both expired and shortlisted. Strip each key.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* changelog: place the #641 entry under [Unreleased]

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Mads Lorentzen <madslorentzen_17@hotmail.com>

CHANGELOG.md

@@ -89,6 +89,13 @@ per-file diff commands.
   "Ørsted" raised a `UnicodeDecodeError` traceback and stopped `/rank` at Step 1. It now exits 1 with a
   one-line message naming the file and asking for a CSV UTF-8 save, as `load_state` does for invalid JSON.
 
+- **`rank_state.py sweep --exclude` ignores spaces after the commas** (#641, `tools/rank_state.py`,
+  `tests/test_rank_state.py`) - rank.md asks for the keys scored this run as a comma-separated list, and
+  `"a_b, c_d"` kept every key after the first in the sweep, because `" c_d"` matched no entry. On an
+  `--all` run, a re-scored entry whose stored deadline had passed was written `expired` and reported under
+  "newly expired" by the sweep, then re-ranked by `apply` from its fresh deadline, so the same job appeared
+  as both expired and shortlisted. Keys are now stripped before matching.
+
 ## [1.7.3] - 2026-10-19
 
 ### Added