fix: type errors the merged batches brought

The name step reused one variable for paths and for (path, md5, size)
tuples, the standalone copies reused targets inside its own loop, and
the WSL state read as object. Ten baseline entries no longer occur.

scripts/common.py

@@ -1933,7 +1933,7 @@ def resolve_local_file(
 
     # 4. Name + alias fallback with md5_composite + direct MD5 per candidate
     md5_set = set(md5_list)
-    candidates = []
+    named: list[tuple[str, str, int | None]] = []
     seen_paths = set()
     for try_name in names_to_try:
         for match_sha1 in by_name.get(try_name, []):
@@ -1942,28 +1942,28 @@ def resolve_local_file(
                 path = entry["path"]
                 if os.path.exists(path) and path not in seen_paths:
                     seen_paths.add(path)
-                    candidates.append(
+                    named.append(
                         (path, entry.get("md5", ""), entry.get("size"))
                     )
 
     if zipped_file:
-        candidates = [c for c in candidates if ".zip" in os.path.basename(c[0])]
+        named = [c for c in named if ".zip" in os.path.basename(c[0])]
     # Another maker's file is no mismatch of this one, it is another file.
-    candidates = [c for c in candidates if not other_maker(c[0], makers, db)]
+    named = [c for c in named if not other_maker(c[0], makers, db)]
     # A size the emulator itself verifies settles a name collision, so a
     # candidate that fits is preferred over one that does not: "ROM" answers
     # both an Apple IIgs image and a Macintosh one. It ranks rather than
     # excludes, because a present file of the wrong size is reported as
     # present and untested, and dropping it would report it as absent.
-    sized = [c for c in candidates if name_match_size_ok(file_entry, c[2])]
+    sized = [c for c in named if name_match_size_ok(file_entry, c[2])]
     if sized:
-        candidates = sized
+        named = sized
 
-    if candidates:
+    if named:
         if md5_set and not (sha1_candidates or sha256_candidates or crc_candidates):
             if composite_only:
-                candidates.sort(key=lambda c: "/.variants/" in c[0])
-            for path, db_md5, _size in candidates:
+                named.sort(key=lambda c: "/.variants/" in c[0])
+            for path, db_md5, _size in named:
                 if ".zip" in os.path.basename(path):
                     try:
                         composite = md5_composite(path).lower()
@@ -1982,7 +1982,7 @@ def resolve_local_file(
         # When zipped_file is set, only accept candidates that contain it
         if zipped_file:
             valid = []
-            for path, m, size in candidates:
+            for path, m, size in named:
                 try:
                     with zipfile.ZipFile(path) as zf:
                         inner_names = {n.casefold() for n in zf.namelist()}
@@ -2001,7 +2001,7 @@ def resolve_local_file(
                 return (primary[0] if primary else valid[0][0]), "hash_mismatch"
             # No candidate contains the zipped_file: fall through to step 5
         elif not unsourceable:
-            ordered = _by_affinity([c[0] for c in candidates], file_entry, dest_hint)
+            ordered = _by_affinity([c[0] for c in named], file_entry, dest_hint)
             primary = [c for c in ordered if "/.variants/" not in c]
             return (primary[0] if primary else ordered[0]), "hash_mismatch"