Merge branch 'blender-v4.2-release'

scripts/addons_core/bl_pkg/Makefile

@@ -19,6 +19,7 @@ PY_FILES_MYPY=$(filter-out \
 	./bl_extension_ops.py \
 	./bl_extension_ui.py \
 	./bl_extension_utils.py \
+	./extensions_map_from_legacy_addons.py \
 	./wheel_manager.py \
 	./example_extension/__init__.py \
 	./example_extension/foo.py \

scripts/addons_core/bl_pkg/cli/blender_ext.py

@@ -1510,9 +1510,7 @@ def pkg_manifest_is_valid_or_error_impl(
 
             # When the default value is None, skip all type checks.
             if not (is_default_value and x_val is None):
-                if x_ty is None:
-                    pass
-                elif isinstance(x_val, x_ty):
+                if isinstance(x_val, x_ty):
                     pass
                 else:
                     error_list.append("\"{:s}\" must be a {:s}, not a {:s}".format(