type fixes from modifier PR

Author: DenverCoder1

babel/core.py

@@ -381,9 +381,9 @@ def _try_load_reducing(parts):
         if likely_subtag is not None:
             parts2 = parse_locale(likely_subtag)
             if len(parts2) == 5:
-                language2, _, script2, variant2, modifier2 = parse_locale(likely_subtag)
+                language2, _, script2, variant2, modifier2 = parts2
             else:
-                language2, _, script2, variant2 = parse_locale(likely_subtag)
+                language2, _, script2, variant2 = parts2
                 modifier2 = None
             locale = _try_load_reducing((language2, territory, script2, variant2, modifier2))
             if locale is not None:
@@ -1177,7 +1177,7 @@ def negotiate_locale(preferred: Iterable[str], available: Iterable[str], sep: st
 def parse_locale(
     identifier: str,
     sep: str = '_'
-) -> tuple[str, str | None, str | None, str | None, str | None]:
+) -> tuple[str, str | None, str | None, str | None] | tuple[str, str | None, str | None, str | None, str | None]:
     """Parse a locale identifier into a tuple of the form ``(language,
     territory, script, variant, modifier)``.