Fixes #2892

Author: zoemartin01

CHANGELOG.md

@@ -6,6 +6,12 @@ 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.
 
+# v3.7.9
+
+### Fixed
+
+- `perms add/remove` should now work again
+
 # v3.7.8
 
 ### Added

bot.py

@@ -988,9 +988,11 @@ async def update_perms(
     ) -> None:
         value = str(value)
         if isinstance(name, PermissionLevel):
+            level = True
             permissions = self.config["level_permissions"]
             name = name.name
         else:
+            level = False
             permissions = self.config["command_permissions"]
         if name not in permissions:
             if add:
@@ -1003,7 +1005,7 @@ async def update_perms(
                 if value in permissions[name]:
                     permissions[name].remove(value)
 
-        if isinstance(name, PermissionLevel):
+        if level:
             self.config["level_permissions"] = permissions
         else:
             self.config["command_permissions"] = permissions