Fix unstructure_to

src/cattrs/gen/__init__.py

@@ -888,7 +888,7 @@ def mapping_unstructure_factory(
 
     lines = [f"def {fn_name}(mapping):"]
 
-    if unstructure_to is dict or origin is dict:
+    if unstructure_to is dict or unstructure_to is None and origin is dict:
         if kh is None and val_handler is None:
             # Simplest path.
             return dict

tests/test_cols.py

@@ -46,3 +46,9 @@ def test_mapping_unstructure_direct(genconverter: Converter):
 
     if is_py310_plus:
         assert genconverter.get_unstructure_hook(dict[str, int]) is dict
+
+
+def test_mapping_unstructure_to(genconverter: Converter):
+    """`unstructure_to` works."""
+    hook = mapping_unstructure_factory(Dict[str, str], genconverter, unstructure_to=Map)
+    assert hook({"a": "a"}).__class__ is Map