Fix enum options (#1359)

Co-authored-by: Lala Sabathil <lala@pycord.dev>

Author: Middledot

discord/commands/core.py

@@ -49,7 +49,7 @@
 )
 
 from ..channel import _guild_channel_factory
-from ..enums import MessageType, SlashCommandOptionType, try_enum
+from ..enums import MessageType, SlashCommandOptionType, try_enum, Enum as DiscordEnum
 from ..errors import (
     ApplicationCommandError,
     ApplicationCommandInvokeError,
@@ -693,6 +693,8 @@ def _parse_options(self, params, *, check_params: bool = True) -> List[Option]:
             if option.default is None:
                 if p_obj.default == inspect.Parameter.empty:
                     option.default = None
+                elif issubclass(p_obj.default, (DiscordEnum, Enum)):
+                    option = Option(p_obj.default)
                 else:
                     option.default = p_obj.default
                     option.required = False