State: Fixed DefaultStore's Channel() not finding DMs

state/store.go

@@ -24,6 +24,7 @@ type Store interface {
 type StoreGetter interface {
 	Me() (*discord.User, error)
 
+	// Channel should check for both DM and guild channels.
 	Channel(id discord.Snowflake) (*discord.Channel, error)
 	Channels(guildID discord.Snowflake) ([]discord.Channel, error)
 	PrivateChannels() ([]discord.Channel, error)

state/store_default.go

@@ -99,6 +99,10 @@ func (s *DefaultStore) Channel(id discord.Snowflake) (*discord.Channel, error) {
 		}
 	}
 
+	if ch, ok := s.privates[id]; ok {
+		return ch, nil
+	}
+
 	return nil, ErrStoreNotFound
 }