fix(#5619): reload config cache on profile switch

api/config.py

@@ -450,8 +450,9 @@ def reload_config_if_stale() -> None:
             current_mtime = config_path.stat().st_mtime
         except OSError:
             current_mtime = 0.0
-        cache_stale = current_mtime != _cfg_mtime or _cfg_path != config_path
-        if not _cfg_cache or (cache_stale and not _cfg_has_in_memory_overrides()):
+        path_changed = _cfg_path != config_path
+        mtime_stale = current_mtime != _cfg_mtime
+        if not _cfg_cache or path_changed or (mtime_stale and not _cfg_has_in_memory_overrides()):
             _refresh_config_cache(config_path)
 
 
@@ -462,8 +463,9 @@ def get_config() -> dict:
         current_mtime = config_path.stat().st_mtime
     except OSError:
         current_mtime = 0.0
-    cache_stale = current_mtime != _cfg_mtime or _cfg_path != config_path
-    if not _cfg_cache or (cache_stale and not _cfg_has_in_memory_overrides()):
+    path_changed = _cfg_path != config_path
+    mtime_stale = current_mtime != _cfg_mtime
+    if not _cfg_cache or path_changed or (mtime_stale and not _cfg_has_in_memory_overrides()):
         reload_config_if_stale()
     # When a test (or runtime caller) has rebound ``cfg`` to a different dict
     # via monkeypatch.setattr(config, "cfg", ...), return that override rather