enable some test folders, bunch of fixes

django-stubs/forms/models.pyi

@@ -235,7 +235,7 @@ class ModelChoiceField(ChoiceField):
     iterator: Any = ...
     empty_label: Optional[str] = ...
     queryset: Any = ...
-    limit_choices_to: None = ...
+    limit_choices_to: Optional[Union[Dict[str, Any], Callable[[], Any]]] = ...
     to_field_name: None = ...
     def __init__(
         self,
@@ -248,7 +248,7 @@ class ModelChoiceField(ChoiceField):
         initial: Optional[Any] = ...,
         help_text: str = ...,
         to_field_name: Optional[Any] = ...,
-        limit_choices_to: Optional[Any] = ...,
+        limit_choices_to: Optional[Union[Dict[str, Any], Callable[[], Any]]] = ...,
         **kwargs: Any
     ) -> None: ...
     def get_limit_choices_to(self) -> Optional[Union[Dict[str, datetime], Q, MagicMock]]: ...

django-stubs/forms/utils.pyi

@@ -1,6 +1,6 @@
 from collections import UserList
 from datetime import datetime
-from typing import Any, Callable, Dict, List, Optional, Tuple, Type, Union
+from typing import Any, Callable, Dict, List, Optional, Tuple, Type, Union, Sequence
 
 from django.core.exceptions import ValidationError
 from django.utils.safestring import SafeText
@@ -18,7 +18,9 @@ class ErrorDict(dict):
 class ErrorList(UserList):
     data: List[Union[ValidationError, str]]
     error_class: str = ...
-    def __init__(self, initlist: Optional[ErrorList] = ..., error_class: Optional[str] = ...) -> None: ...
+    def __init__(
+        self, initlist: Optional[Union[ErrorList, Sequence[str]]] = ..., error_class: Optional[str] = ...
+    ) -> None: ...
     def as_data(self) -> List[ValidationError]: ...
     def get_json_data(self, escape_html: bool = ...) -> List[Dict[str, str]]: ...
     def as_json(self, escape_html: bool = ...) -> str: ...