Fix bug in block, thread reason not working

Author: fourjr

CHANGELOG.md

@@ -6,6 +6,13 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 This project mostly adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html);
 however, insignificant breaking changes do not guarantee a major version bump, see the reasoning [here](https://github.com/kyb3r/modmail/issues/319). If you're a plugin developer, note the "BREAKING" section.
 
+# v3.7.12
+
+### Fixed
+
+- Bot was not responding to union errors.
+- `?block [reason]` now works in threads.
+
 # v3.7.11
 
 ### Improved

README.md

@@ -6,7 +6,7 @@
   <br>
 
   <a href="#">
-    <img src="https://img.shields.io/badge/Latest%20Version-v3.7.11-7289da?style=for-the-badge&logo=data:image/gif;base64,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">
+    <img src="https://img.shields.io/badge/Latest%20Version-v3.7.12-7289da?style=for-the-badge&logo=data:image/gif;base64,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">
   </a>
 
   <br>

bot.py

@@ -1,4 +1,4 @@
-__version__ = "3.7.11"
+__version__ = "3.7.12"
 
 
 import asyncio
@@ -1386,11 +1386,7 @@ async def on_error(self, event_method, *args, **kwargs):
         logger.error("Unexpected exception:", exc_info=sys.exc_info())
 
     async def on_command_error(self, context, exception):
-        if isinstance(exception, commands.BadUnionArgument):
-            await context.trigger_typing()
-            await context.send(embed=discord.Embed(color=self.error_color, description=msg))
-
-        elif isinstance(exception, commands.BadArgument):
+        if isinstance(exception, commands.BadArgument):
             await context.trigger_typing()
             await context.send(
                 embed=discord.Embed(color=self.error_color, description=str(exception))

cogs/modmail.py

@@ -1147,7 +1147,7 @@ async def blocked_whitelist(self, ctx, *, user: User = None):
     async def block(
         self,
         ctx,
-        user_or_role: Union[User, discord.Role] = None,
+        user_or_role: Optional[Union[User, discord.Role]] = None,
         *,
         after: UserFriendlyTime = None,
     ):