message: mentions as an id to preserve cache
diff: @@ -18,6 +18,7 @@ export async function createMessage(data: MessageCreateOptions) {
  ...rest,
  channelID,
  guildID: guildID || "",
  + mentions: data.mentions.map((m) => m.id),
  mentionsEveryone,
  mentionRoles,
  mentionChannels: mentionChannels || [],
  